diff --git a/Cargo.lock b/Cargo.lock
index 5bdba1be..3033fc33 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -14,9 +14,9 @@ dependencies = [
 
 [[package]]
 name = "addr2line"
-version = "0.14.1"
+version = "0.15.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a55f82cfe485775d02112886f4169bde0c5894d75e79ead7eafe7e40a25e45f7"
+checksum = "e7a2e47a1fbe209ee101dd6d61285226744c6c8d3c21c8dc878ba6cb9f467f3a"
 dependencies = [
  "gimli",
 ]
@@ -29,49 +29,30 @@ checksum = "f26201604c87b1e01bd3d98f8d5d9a8fcbb815e8cedb41ffccbeb4bf593a35fe"
 
 [[package]]
 name = "aead"
-version = "0.3.2"
+version = "0.4.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7fc95d1bdb8e6666b2b217308eeeb09f2d6728d104be3e31916cc74d15420331"
+checksum = "922b33332f54fc0ad13fa3e514601e8d30fb54e1f3eadc36643f6526db645621"
 dependencies = [
  "generic-array 0.14.4",
 ]
 
 [[package]]
 name = "aes"
-version = "0.6.0"
+version = "0.7.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "884391ef1066acaa41e766ba8f596341b96e93ce34f9a43e7d24bf0a0eaf0561"
-dependencies = [
- "aes-soft",
- "aesni",
- "cipher",
-]
-
-[[package]]
-name = "aes-soft"
-version = "0.6.4"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "be14c7498ea50828a38d0e24a765ed2effe92a705885b57d029cd67d45744072"
-dependencies = [
- "cipher",
- "opaque-debug 0.3.0",
-]
-
-[[package]]
-name = "aesni"
-version = "0.10.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ea2e11f5e94c2f7d386164cc2aa1f97823fed6f259e486940a71c174dd01b0ce"
+checksum = "495ee669413bfbe9e8cace80f4d3d78e6d8c8d99579f97fb93bde351b185f2d4"
 dependencies = [
+ "cfg-if 1.0.0",
  "cipher",
+ "cpufeatures",
  "opaque-debug 0.3.0",
 ]
 
 [[package]]
 name = "aho-corasick"
-version = "0.7.15"
+version = "0.7.18"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7404febffaa47dac81aa44dba71523c9d069b1bdc50a77db41195149e17f68e5"
+checksum = "1e37cfd5e7657ada45f742d6e99ca5788580b5c529dc78faf11ece6dc702656f"
 dependencies = [
  "memchr",
 ]
@@ -87,9 +68,9 @@ dependencies = [
 
 [[package]]
 name = "anyhow"
-version = "1.0.40"
+version = "1.0.41"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "28b2cd92db5cbd74e8e5028f7e27dd7aa3090e89e4f2a197cc7c8dfb69c7063b"
+checksum = "15af2628f6890fe2609a3b91bef4c83450512802e59489f9c1cb1fa5df064a61"
 
 [[package]]
 name = "arrayref"
@@ -103,6 +84,12 @@ version = "0.5.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "23b62fc65de8e4e7f52534fb52b0f3ed04746ae267519eef2a83941e8085068b"
 
+[[package]]
+name = "arrayvec"
+version = "0.7.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "be4dc07131ffa69b8072d35f5007352af944213cde02545e2103680baed38fcd"
+
 [[package]]
 name = "async-trait"
 version = "0.1.50"
@@ -134,11 +121,12 @@ checksum = "cdb031dd78e28731d87d56cc8ffef4a8f36ca26c38fe2de700543e627f8a464a"
 
 [[package]]
 name = "backtrace"
-version = "0.3.56"
+version = "0.3.60"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9d117600f438b1707d4e4ae15d3595657288f8235a0eb593e80ecc98ab34e1bc"
+checksum = "b7815ea54e4d821e791162e078acbebfd6d8c8939cd559c9335dceb1c8ca7282"
 dependencies = [
  "addr2line",
+ "cc",
  "cfg-if 1.0.0",
  "libc",
  "miniz_oxide",
@@ -213,20 +201,9 @@ dependencies = [
 
 [[package]]
 name = "bitvec"
-version = "0.18.5"
+version = "0.20.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "98fcd36dda4e17b7d7abc64cb549bf0201f4ab71e00700c798ca7e62ed3761fa"
-dependencies = [
- "funty",
- "radium 0.3.0",
- "wyz",
-]
-
-[[package]]
-name = "bitvec"
-version = "0.20.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1f682656975d3a682daff957be4ddeb65d6ad656737cd821f2d00685ae466af1"
+checksum = "7774144344a4faa177370406a7ff5f1da24303817368584c6206c8303eb07848"
 dependencies = [
  "funty",
  "radium 0.6.2",
@@ -252,7 +229,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "afa748e348ad3be8263be728124b24a24f268266f6f5d58af9d75f6a40b5c587"
 dependencies = [
  "arrayref",
- "arrayvec",
+ "arrayvec 0.5.2",
  "constant_time_eq",
 ]
 
@@ -280,9 +257,9 @@ dependencies = [
 
 [[package]]
 name = "block-modes"
-version = "0.7.0"
+version = "0.8.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "57a0e8073e8baa88212fb5823574c02ebccb395136ba9a164ab89379ec6072f0"
+checksum = "2cb03d1bed155d89dce0f845b7899b18a9a163e148fd004e1c28421a783e2d8e"
 dependencies = [
  "block-padding 0.2.1",
  "cipher",
@@ -305,15 +282,15 @@ checksum = "8d696c370c750c948ada61c69a0ee2cbbb9c50b1019ddb86d9317157a99c2cae"
 
 [[package]]
 name = "bs58"
-version = "0.3.1"
+version = "0.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "476e9cd489f9e121e02ffa6014a8ef220ecb15c05ed23fc34cca13925dc283fb"
+checksum = "771fe0050b883fcc3ea2359b1a96bcfbc090b7116eae7c3c512c7a083fdf23d3"
 
 [[package]]
 name = "bumpalo"
-version = "3.6.1"
+version = "3.7.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "63396b8a4b9de3f4fdfb320ab6080762242f66a8ef174c49d8e19b674db4cdbe"
+checksum = "9c59e7af012c713f529e7a3ee57ce9b31ddd858d4b512923602f74608b009631"
 
 [[package]]
 name = "byte-slice-cast"
@@ -329,9 +306,9 @@ checksum = "e3b5ca7a04898ad4bcd41c90c5285445ff5b791899bb1b0abdd2a2aa791211d7"
 
 [[package]]
 name = "byteorder"
-version = "1.3.4"
+version = "1.4.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "08c48aae112d48ed9f069b33538ea9e3e90aa263cfa3d1c24309612b1f7472de"
+checksum = "14c189c53d098945499cdfa7ecc63567cf3886b3332b312a5b4585d8d3a6a610"
 
 [[package]]
 name = "bytes"
@@ -344,19 +321,19 @@ dependencies = [
 
 [[package]]
 name = "cc"
-version = "1.0.67"
+version = "1.0.68"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e3c69b077ad434294d3ce9f1f6143a2a4b89a8a2d54ef813d85003a4fd1137fd"
+checksum = "4a72c244c1ff497a746a7e1fb3d14bd08420ecda70c8f25c7112f2781652d787"
 
 [[package]]
 name = "ccm"
-version = "0.3.0"
+version = "0.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5aca1a8fbc20b50ac9673ff014abfb2b5f4085ee1a850d408f14a159c5853ac7"
+checksum = "62540fbe7b9f9280047764363ab3004301fea9a7822af5bea350826a24ab42d1"
 dependencies = [
  "aead",
  "cipher",
- "subtle 2.4.0",
+ "subtle",
 ]
 
 [[package]]
@@ -387,51 +364,54 @@ dependencies = [
 
 [[package]]
 name = "cipher"
-version = "0.2.5"
+version = "0.3.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "12f8e7987cbd042a63249497f41aed09f8e65add917ea6566effbc56578d6801"
+checksum = "7ee52072ec15386f770805afd189a01c8841be8696bed250fa2f13c4c0d6dfb7"
 dependencies = [
  "generic-array 0.14.4",
 ]
 
 [[package]]
 name = "cmac"
-version = "0.5.1"
+version = "0.6.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "73d4de4f7724e5fe70addfb2bd37c2abd2f95084a429d7773b0b9645499b4272"
+checksum = "b70e37282d9624283878ffda1d1e53883bcf868cf441bddda44127620b39572d"
 dependencies = [
- "crypto-mac 0.10.0",
+ "crypto-mac 0.11.0",
  "dbl",
 ]
 
 [[package]]
 name = "coins-bip32"
-version = "0.2.2"
+version = "0.3.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7293fc13f56d24998ad405f2402145b27c28940e2bf0f739a1bd08f4c90af861"
+checksum = "01b669993c632e5fec4a297085ec57381f53e4646c123cb77a7ca754e005c921"
 dependencies = [
+ "bincode",
  "bs58",
  "coins-core",
- "hmac 0.7.1",
+ "digest 0.9.0",
+ "hmac",
  "k256",
  "lazy_static",
  "serde",
- "sha2 0.8.2",
+ "sha2 0.9.5",
  "thiserror",
 ]
 
 [[package]]
 name = "coins-bip39"
-version = "0.2.2"
+version = "0.3.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0db08d2935d0f5471ca3031101bcd72a8d31f4c238971266b0bf0b234bcf08e6"
+checksum = "38426029442f91bd49973d6f59f28e3dbb14e633e3019ac4ec6bce402c44f81c"
 dependencies = [
  "bitvec 0.17.4",
  "coins-bip32",
+ "getrandom 0.2.3",
  "hex",
- "hmac 0.10.1",
+ "hmac",
  "pbkdf2",
- "rand 0.7.3",
+ "rand 0.8.4",
  "sha2 0.9.5",
  "thiserror",
 ]
@@ -483,9 +463,9 @@ dependencies = [
 
 [[package]]
 name = "const-oid"
-version = "0.4.5"
+version = "0.6.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9f6b64db6932c7e49332728e3a6bd82c6b7e16016607d20923b537c3bc4c0d5f"
+checksum = "44c32f031ea41b4291d695026c023b95d59db2d8a2c7640800ed56bc8f510f22"
 
 [[package]]
 name = "constant_time_eq"
@@ -518,12 +498,6 @@ dependencies = [
  "libc",
 ]
 
-[[package]]
-name = "cpuid-bool"
-version = "0.1.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8aebca1129a03dc6dc2b127edd729435bbc4a37e1d5f4d7513165089ceb02634"
-
 [[package]]
 name = "crunchy"
 version = "0.2.2"
@@ -532,22 +506,14 @@ checksum = "7a81dae078cea95a014a339291cec439d2f232ebe854a9d672b796c6afafa9b7"
 
 [[package]]
 name = "crypto-bigint"
-version = "0.2.1"
+version = "0.2.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "bdc9968be9247fb330af911b91a58a267cbbcfcb8dea88debaf977738950dce5"
+checksum = "b32a398eb1ccfbe7e4f452bc749c44d38dd732e9a253f19da224c416f00ee7f4"
 dependencies = [
  "generic-array 0.14.4",
- "subtle 2.4.0",
-]
-
-[[package]]
-name = "crypto-mac"
-version = "0.7.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4434400df11d95d556bac068ddfedd482915eb18fe8bea89bc80b6e4b1c179e5"
-dependencies = [
- "generic-array 0.12.4",
- "subtle 1.0.0",
+ "rand_core 0.6.3",
+ "subtle",
+ "zeroize",
 ]
 
 [[package]]
@@ -557,39 +523,39 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "b584a330336237c1eecd3e94266efb216c56ed91225d634cb2991c5f3fd1aeab"
 dependencies = [
  "generic-array 0.14.4",
- "subtle 2.4.0",
+ "subtle",
 ]
 
 [[package]]
 name = "crypto-mac"
-version = "0.10.0"
+version = "0.11.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4857fd85a0c34b3c3297875b747c1e02e06b6a0ea32dd892d8192b9ce0813ea6"
+checksum = "25fab6889090c8133f3deb8f73ba3c65a7f456f66436fc012a1b1e272b1e103e"
 dependencies = [
  "cipher",
  "generic-array 0.14.4",
- "subtle 2.4.0",
+ "subtle",
 ]
 
 [[package]]
 name = "ctr"
-version = "0.6.0"
+version = "0.7.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "fb4a30d54f7443bf3d6191dcd486aca19e67cb3c49fa7a06a319966346707e7f"
+checksum = "a232f92a03f37dd7d7dd2adc67166c77e9cd88de5b019b9a9eecfaeaf7bfd481"
 dependencies = [
  "cipher",
 ]
 
 [[package]]
 name = "curve25519-dalek"
-version = "3.0.2"
+version = "3.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f627126b946c25a4638eec0ea634fc52506dea98db118aae985118ce7c3d723f"
+checksum = "639891fde0dbea823fc3d798a0fdf9d2f9440a42d64a78ab3488b0ca025117b3"
 dependencies = [
  "byteorder",
  "digest 0.9.0",
  "rand_core 0.5.1",
- "subtle 2.4.0",
+ "subtle",
  "zeroize",
 ]
 
@@ -604,9 +570,9 @@ dependencies = [
 
 [[package]]
 name = "der"
-version = "0.1.0"
+version = "0.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "51f59c66c30bb7445c8320a5f9233e437e3572368099f25532a59054328899b4"
+checksum = "49f215f706081a44cb702c71c39a52c05da637822e9c1645a50b7202689e982d"
 dependencies = [
  "const-oid",
 ]
@@ -631,20 +597,21 @@ dependencies = [
 
 [[package]]
 name = "ecdsa"
-version = "0.10.2"
+version = "0.12.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "41fbdb4ff710acb4db8ca29f93b897529ea6d6a45626d5183b47e012aa6ae7e4"
+checksum = "05cb0ed2d2ce37766ac86c05f66973ace8c51f7f1533bedce8fb79e2b54b3f14"
 dependencies = [
- "elliptic-curve 0.8.5",
- "hmac 0.10.1",
+ "der",
+ "elliptic-curve",
+ "hmac",
  "signature",
 ]
 
 [[package]]
 name = "ed25519"
-version = "1.0.3"
+version = "1.1.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "37c66a534cbb46ab4ea03477eae19d5c22c01da8258030280b7bd9d8433fb6ef"
+checksum = "8d0860415b12243916284c67a9be413e044ee6668247b99ba26d94b2bc06c8f6"
 dependencies = [
  "signature",
 ]
@@ -669,24 +636,6 @@ version = "1.6.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "e78d4f1cc4ae33bbfc157ed5d5a5ef3bc29227303d595861deb238fcec4e9457"
 
-[[package]]
-name = "elliptic-curve"
-version = "0.8.5"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f2db227e61a43a34915680bdda462ec0e212095518020a88a1f91acd16092c39"
-dependencies = [
- "bitvec 0.18.5",
- "digest 0.9.0",
- "ff",
- "funty",
- "generic-array 0.14.4",
- "group",
- "pkcs8",
- "rand_core 0.5.1",
- "subtle 2.4.0",
- "zeroize",
-]
-
 [[package]]
 name = "elliptic-curve"
 version = "0.10.3"
@@ -694,9 +643,13 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "dd035cb119cbc25e91bb6f1abbfe341388ddb47a1fe5e77ca6bcbe231e87580b"
 dependencies = [
  "crypto-bigint",
+ "ff",
  "generic-array 0.14.4",
- "rand_core 0.6.2",
- "subtle 2.4.0",
+ "group",
+ "pkcs8",
+ "rand_core 0.6.3",
+ "subtle",
+ "zeroize",
 ]
 
 [[package]]
@@ -710,17 +663,17 @@ dependencies = [
 
 [[package]]
 name = "eth-keystore"
-version = "0.2.1"
+version = "0.3.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c0d128fb0d7550951c92498f5e5d146ea829986d6a4c87180e25f65084f689a0"
+checksum = "d47d900a7dea08593d398104f8288e37858b0ad714c8d08cd03fdb86563e6402"
 dependencies = [
  "aes",
  "ctr",
  "digest 0.9.0",
  "hex",
- "hmac 0.10.1",
+ "hmac",
  "pbkdf2",
- "rand 0.7.3",
+ "rand 0.8.4",
  "scrypt",
  "serde",
  "serde_json",
@@ -775,7 +728,7 @@ dependencies = [
 
 [[package]]
 name = "ethers"
-version = "0.2.2"
+version = "0.4.0"
 dependencies = [
  "anyhow",
  "ethers-contract",
@@ -783,7 +736,7 @@ dependencies = [
  "ethers-middleware",
  "ethers-providers",
  "ethers-signers",
- "rand 0.7.3",
+ "rand 0.8.4",
  "serde",
  "serde_json",
  "tokio",
@@ -791,7 +744,7 @@ dependencies = [
 
 [[package]]
 name = "ethers-contract"
-version = "0.2.2"
+version = "0.4.0"
 dependencies = [
  "ethers",
  "ethers-contract-abigen",
@@ -812,7 +765,7 @@ dependencies = [
 
 [[package]]
 name = "ethers-contract-abigen"
-version = "0.2.2"
+version = "0.4.0"
 dependencies = [
  "Inflector",
  "anyhow",
@@ -828,7 +781,7 @@ dependencies = [
 
 [[package]]
 name = "ethers-contract-derive"
-version = "0.2.2"
+version = "0.4.0"
 dependencies = [
  "ethers-contract-abigen",
  "ethers-core",
@@ -841,13 +794,13 @@ dependencies = [
 
 [[package]]
 name = "ethers-core"
-version = "0.2.2"
+version = "0.4.0"
 dependencies = [
- "arrayvec",
+ "arrayvec 0.5.2",
  "bincode",
  "bytes",
  "ecdsa",
- "elliptic-curve 0.10.3",
+ "elliptic-curve",
  "ethabi",
  "ethers",
  "funty",
@@ -857,7 +810,7 @@ dependencies = [
  "hex",
  "k256",
  "once_cell",
- "rand 0.7.3",
+ "rand 0.8.4",
  "rlp",
  "serde",
  "serde_json",
@@ -868,7 +821,7 @@ dependencies = [
 
 [[package]]
 name = "ethers-middleware"
-version = "0.2.2"
+version = "0.4.0"
 dependencies = [
  "async-trait",
  "ethers",
@@ -879,7 +832,7 @@ dependencies = [
  "futures-executor",
  "futures-util",
  "hex",
- "rand 0.7.3",
+ "rand 0.8.4",
  "reqwest",
  "serde",
  "serde-aux",
@@ -893,7 +846,7 @@ dependencies = [
 
 [[package]]
 name = "ethers-providers"
-version = "0.2.2"
+version = "0.4.0"
 dependencies = [
  "async-trait",
  "auto_impl",
@@ -921,20 +874,20 @@ dependencies = [
 
 [[package]]
 name = "ethers-signers"
-version = "0.2.2"
+version = "0.4.0"
 dependencies = [
  "async-trait",
  "coins-bip32",
  "coins-bip39",
  "coins-ledger",
- "elliptic-curve 0.10.3",
+ "elliptic-curve",
  "eth-keystore",
  "ethers",
  "ethers-core",
  "futures-executor",
  "futures-util",
  "hex",
- "rand 0.7.3",
+ "rand 0.8.4",
  "serde_json",
  "sha2 0.9.5",
  "tempfile",
@@ -951,13 +904,12 @@ checksum = "e88a8acf291dafb59c2d96e8f59828f3838bb1a70398823ade51a84de6a6deed"
 
 [[package]]
 name = "ff"
-version = "0.8.0"
+version = "0.10.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "01646e077d4ebda82b73f1bca002ea1e91561a77df2431a9e79729bcc31950ef"
+checksum = "63eec06c61e487eecf0f7e6e6372e596a81922c28d33e645d6983ca6493a1af0"
 dependencies = [
- "bitvec 0.18.5",
- "rand_core 0.5.1",
- "subtle 2.4.0",
+ "rand_core 0.6.3",
+ "subtle",
 ]
 
 [[package]]
@@ -967,7 +919,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "cfcf0ed7fe52a17a03854ec54a9f76d6d84508d1c0e66bc1793301c73fc8493c"
 dependencies = [
  "byteorder",
- "rand 0.8.3",
+ "rand 0.8.4",
  "rustc-hex",
  "static_assertions",
 ]
@@ -1011,9 +963,9 @@ checksum = "fed34cd105917e91daa4da6b3728c47b068749d6a62c59811f06ed2ac71d9da7"
 
 [[package]]
 name = "futures"
-version = "0.3.13"
+version = "0.3.15"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7f55667319111d593ba876406af7c409c0ebb44dc4be6132a783ccf163ea14c1"
+checksum = "0e7e43a803dae2fa37c1f6a8fe121e1f7bf9548b4dfc0522a42f34145dadfc27"
 dependencies = [
  "futures-channel",
  "futures-core",
@@ -1042,9 +994,9 @@ checksum = "0402f765d8a89a26043b889b26ce3c4679d268fa6bb22cd7c6aad98340e179d1"
 
 [[package]]
 name = "futures-executor"
-version = "0.3.14"
+version = "0.3.15"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "10f6cb7042eda00f0049b1d2080aa4b93442997ee507eb3828e8bd7577f94c9d"
+checksum = "badaa6a909fac9e7236d0620a2f57f7664640c56575b71a7552fbd68deafab79"
 dependencies = [
  "futures-core",
  "futures-task",
@@ -1142,20 +1094,22 @@ dependencies = [
 
 [[package]]
 name = "getrandom"
-version = "0.2.2"
+version = "0.2.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c9495705279e7140bf035dde1f6e750c162df8b625267cd52cc44e0b156732c8"
+checksum = "7fcd999463524c52659517fe2cea98493cfe485d10565e7b0fb07dbba7ad2753"
 dependencies = [
  "cfg-if 1.0.0",
+ "js-sys",
  "libc",
  "wasi 0.10.2+wasi-snapshot-preview1",
+ "wasm-bindgen",
 ]
 
 [[package]]
 name = "gimli"
-version = "0.23.0"
+version = "0.24.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f6503fe142514ca4799d4c26297c4248239fe8838d827db6bd6065c6ed29a6ce"
+checksum = "0e4075386626662786ddb0ec9081e7c7eeb1ba31951f447ca780ef9f5d568189"
 
 [[package]]
 name = "glob"
@@ -1165,20 +1119,20 @@ checksum = "9b919933a397b79c37e33b77bb2aa3dc8eb6e165ad809e58ff75bc7db2e34574"
 
 [[package]]
 name = "group"
-version = "0.8.0"
+version = "0.10.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "cc11f9f5fbf1943b48ae7c2bf6846e7d827a512d1be4f23af708f5ca5d01dde1"
+checksum = "1c363a5301b8f153d80747126a04b3c82073b9fe3130571a9d170cacdeaf7912"
 dependencies = [
  "ff",
- "rand_core 0.5.1",
- "subtle 2.4.0",
+ "rand_core 0.6.3",
+ "subtle",
 ]
 
 [[package]]
 name = "h2"
-version = "0.3.2"
+version = "0.3.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "fc018e188373e2777d0ef2467ebff62a08e66c3f5857b23c8fbec3018210dc00"
+checksum = "825343c4eef0b63f541f8903f395dc5beb362a979b5799a84062527ef1e37726"
 dependencies = [
  "bytes",
  "fnv",
@@ -1201,15 +1155,15 @@ checksum = "60bf12c625ed5e96f81609ae4377c34e9fa3e4d1fada392404322daeace511ab"
 
 [[package]]
 name = "hashbrown"
-version = "0.9.1"
+version = "0.11.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d7afe4a420e3fe79967a00898cc1f4db7c8a49a9333a29f8a4bd76a253d5cd04"
+checksum = "ab5ef0d4909ef3724cc8cce6ccc8572c5c817592e9285f5464f8e86f8bd3726e"
 
 [[package]]
 name = "hermit-abi"
-version = "0.1.18"
+version = "0.1.19"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "322f4de77956e22ed0e5032c359a0f1273f1f7f0d79bfa3b8ffbc730d7fbcc5c"
+checksum = "62b467343b94ba476dcb2500d242dadbb39557df889310ac77c5d99100aaac33"
 dependencies = [
  "libc",
 ]
@@ -1222,9 +1176,9 @@ checksum = "7f24254aa9a54b5c858eaee2f5bccdb46aaf0e486a595ed5fd8f86ba55232a70"
 
 [[package]]
 name = "hidapi"
-version = "1.2.5"
+version = "1.2.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "76c352a18370f7e7e47bcbfcbdc5432b8c80c705b5d751a25232c659fcf5c775"
+checksum = "81e07da7e8614133e88b3a93b7352eb3729e3ccd82d5ab661adf23bef1761bf8"
 dependencies = [
  "cc",
  "libc",
@@ -1233,29 +1187,19 @@ dependencies = [
 
 [[package]]
 name = "hmac"
-version = "0.7.1"
+version = "0.11.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5dcb5e64cda4c23119ab41ba960d1e170a774c8e4b9d9e6a9bc18aabf5e59695"
+checksum = "2a2a2320eb7ec0ebe8da8f744d7812d9fc4cb4d09344ac01898dbcb6a20ae69b"
 dependencies = [
- "crypto-mac 0.7.0",
- "digest 0.8.1",
-]
-
-[[package]]
-name = "hmac"
-version = "0.10.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c1441c6b1e930e2817404b5046f1f989899143a12bf92de603b69f4e0aee1e15"
-dependencies = [
- "crypto-mac 0.10.0",
+ "crypto-mac 0.11.0",
  "digest 0.9.0",
 ]
 
 [[package]]
 name = "http"
-version = "0.2.3"
+version = "0.2.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7245cd7449cc792608c3c8a9eaf69bd4eabbabf802713748fd739c98b82f0747"
+checksum = "527e8c9ac747e28542699a951517aa9a6945af506cd1f2e1b53a576c17b6cc11"
 dependencies = [
  "bytes",
  "fnv",
@@ -1264,9 +1208,9 @@ dependencies = [
 
 [[package]]
 name = "http-body"
-version = "0.4.1"
+version = "0.4.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5dfb77c123b4e2f72a2069aeae0b4b4949cc7e966df277813fc16347e7549737"
+checksum = "60daa14be0e0786db0f03a9e57cb404c9d756eed2b6c62b9ea98ec5743ec75a9"
 dependencies = [
  "bytes",
  "http",
@@ -1275,21 +1219,21 @@ dependencies = [
 
 [[package]]
 name = "httparse"
-version = "1.3.5"
+version = "1.4.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "615caabe2c3160b313d52ccc905335f4ed5f10881dd63dc5699d47e90be85691"
+checksum = "f3a87b616e37e93c22fb19bcd386f02f3af5ea98a25670ad0fce773de23c5e68"
 
 [[package]]
 name = "httpdate"
-version = "0.3.2"
+version = "1.0.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "494b4d60369511e7dea41cf646832512a94e542f68bb9c49e54518e0f468eb47"
+checksum = "6456b8a6c8f33fee7d958fcd1b60d55b11940a79e63ae87013e6d22e26034440"
 
 [[package]]
 name = "hyper"
-version = "0.14.5"
+version = "0.14.9"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8bf09f61b52cfcf4c00de50df88ae423d6c02354e385a86341133b5338630ad1"
+checksum = "07d6baa1b441335f3ce5098ac421fb6547c46dda735ca1bc6d0153c838f9dd83"
 dependencies = [
  "bytes",
  "futures-channel",
@@ -1301,7 +1245,7 @@ dependencies = [
  "httparse",
  "httpdate",
  "itoa",
- "pin-project",
+ "pin-project-lite",
  "socket2",
  "tokio",
  "tower-service",
@@ -1339,9 +1283,9 @@ dependencies = [
 
 [[package]]
 name = "idna"
-version = "0.2.2"
+version = "0.2.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "89829a5d69c23d348314a7ac337fe39173b61149a9864deabd260983aed48c21"
+checksum = "418a0a6fab821475f634efe3ccc45c013f742efe03d853e8d3355d5cb850ecf8"
 dependencies = [
  "matches",
  "unicode-bidi",
@@ -1350,9 +1294,9 @@ dependencies = [
 
 [[package]]
 name = "impl-codec"
-version = "0.5.0"
+version = "0.5.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "df170efa359aebdd5cb7fe78edcc67107748e4737bdca8a8fb40d15ea7a877ed"
+checksum = "161ebdfec3c8e3b52bf61c4f3550a1eea4f9579d10dc1b936f3171ebdcd6c443"
 dependencies = [
  "parity-scale-codec",
 ]
@@ -1376,10 +1320,21 @@ dependencies = [
 ]
 
 [[package]]
-name = "indexmap"
-version = "1.6.2"
+name = "impl-trait-for-tuples"
+version = "0.2.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "824845a0bf897a9042383849b02c1bc219c2383772efcd5c6f9766fa4b81aef3"
+checksum = "d5dacb10c5b3bb92d46ba347505a9041e676bb20ad220101326bffb0c93031ee"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn",
+]
+
+[[package]]
+name = "indexmap"
+version = "1.7.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "bc633605454125dec4b66843673f01c7df2b89479b32e0ed634e43a91cff62a5"
 dependencies = [
  "autocfg",
  "hashbrown",
@@ -1396,9 +1351,9 @@ dependencies = [
 
 [[package]]
 name = "ipnet"
-version = "2.3.0"
+version = "2.3.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "47be2f14c678be2fdcab04ab1171db51b2762ce6f0a8ee87c8dd4a04ed216135"
+checksum = "68f2d64f2edebec4ce84ad108148e67e1064789bee435edc5b60ad398714a3a9"
 
 [[package]]
 name = "itoa"
@@ -1408,22 +1363,22 @@ checksum = "dd25036021b0de88a0aff6b850051563c6516d0bf53f8638938edbb9de732736"
 
 [[package]]
 name = "js-sys"
-version = "0.3.50"
+version = "0.3.51"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2d99f9e3e84b8f67f846ef5b4cbbc3b1c29f6c759fcbce6f01aa0e73d932a24c"
+checksum = "83bdfbace3a0e81a4253f73b49e960b053e396a11012cbd49b9b74d6a2b67062"
 dependencies = [
  "wasm-bindgen",
 ]
 
 [[package]]
 name = "k256"
-version = "0.7.3"
+version = "0.9.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4476a0808212a9e81ce802eb1a0cfc60e73aea296553bacc0fac7e1268bc572a"
+checksum = "f3a26a4a8e8b0ab315c687767b543c923c9667a1f2bf42a42818d1453891c7c1"
 dependencies = [
  "cfg-if 1.0.0",
  "ecdsa",
- "elliptic-curve 0.8.5",
+ "elliptic-curve",
  "sha2 0.9.5",
  "sha3",
 ]
@@ -1475,9 +1430,9 @@ checksum = "7ffc5c5338469d4d3ea17d269fa8ea3512ad247247c30bd2df69e68309ed0a08"
 
 [[package]]
 name = "memchr"
-version = "2.3.4"
+version = "2.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0ee1c47aaa256ecabcaea351eae4a9b01ef39ed810004e298d2511ed284b1525"
+checksum = "b16bd47d9e329435e309c58469fe0791c2d0d1ba96ec0954152a5ae2b04387dc"
 
 [[package]]
 name = "mime"
@@ -1497,9 +1452,9 @@ dependencies = [
 
 [[package]]
 name = "mio"
-version = "0.7.11"
+version = "0.7.13"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "cf80d3e903b34e0bd7282b218398aec54e082c840d9baf8339e0080a0c542956"
+checksum = "8c2bdb6314ec10835cd3293dd268473a835c02b7b352e788be788b3c6ca6bb16"
 dependencies = [
  "libc",
  "log",
@@ -1588,9 +1543,12 @@ dependencies = [
 
 [[package]]
 name = "object"
-version = "0.23.0"
+version = "0.25.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a9a7ab5d64814df0fe4a4b5ead45ed6c5f181ee3ff04ba344313a6c80446c5d4"
+checksum = "a38f2be3697a57b4060074ff41b44c16870d916ad7877c17696e063257482bc7"
+dependencies = [
+ "memchr",
+]
 
 [[package]]
 name = "once_cell"
@@ -1612,9 +1570,9 @@ checksum = "624a8340c38c1b80fd549087862da4ba43e08858af025b236e509b6649fc13d5"
 
 [[package]]
 name = "openssl"
-version = "0.10.33"
+version = "0.10.35"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a61075b62a23fef5a29815de7536d940aa35ce96d18ce0cc5076272db678a577"
+checksum = "549430950c79ae24e6d02e0b7404534ecf311d94cc9f861e9e4020187d13d885"
 dependencies = [
  "bitflags",
  "cfg-if 1.0.0",
@@ -1626,15 +1584,15 @@ dependencies = [
 
 [[package]]
 name = "openssl-probe"
-version = "0.1.2"
+version = "0.1.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "77af24da69f9d9341038eba93a073b1fdaaa1b788221b00a69bce9e762cb32de"
+checksum = "28988d872ab76095a6e6ac88d99b54fd267702734fd7ffe610ca27f533ddb95a"
 
 [[package]]
 name = "openssl-sys"
-version = "0.9.61"
+version = "0.9.65"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "313752393519e876837e09e1fa183ddef0be7735868dced3196f4472d536277f"
+checksum = "7a7907e3bfa08bb85105209cdfcb6c63d109f8f6c1ed6ca318fff5c1853fbc1d"
 dependencies = [
  "autocfg",
  "cc",
@@ -1645,56 +1603,71 @@ dependencies = [
 
 [[package]]
 name = "p256"
-version = "0.7.2"
+version = "0.9.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7ca0196a204bb3f33305ba4a48b38f6e6e621cba8603a4e0650e6532e0949de4"
+checksum = "d053368e1bae4c8a672953397bd1bd7183dde1c72b0b7612a15719173148d186"
 dependencies = [
  "ecdsa",
- "elliptic-curve 0.8.5",
+ "elliptic-curve",
  "sha2 0.9.5",
 ]
 
 [[package]]
 name = "p384"
-version = "0.6.1"
+version = "0.8.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ea33960aac2200d19a5c9ab06a11ebd48a37a23144496632c358182e6765d80b"
+checksum = "f23bc88c404ccc881c8a1ad62ba5cd7d336a64ecbf46de4874f2ad955f67b157"
 dependencies = [
  "ecdsa",
- "elliptic-curve 0.8.5",
+ "elliptic-curve",
 ]
 
 [[package]]
 name = "parity-scale-codec"
-version = "2.0.1"
+version = "2.2.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0cd3dab59b5cf4bc81069ade0fc470341a1ef3ad5fa73e5a8943bed2ec12b2e8"
+checksum = "8975095a2a03bbbdc70a74ab11a4f76a6d0b84680d87c68d722531b0ac28e8a9"
 dependencies = [
- "arrayvec",
- "bitvec 0.20.2",
+ "arrayvec 0.7.1",
+ "bitvec 0.20.4",
  "byte-slice-cast",
+ "impl-trait-for-tuples",
+ "parity-scale-codec-derive",
  "serde",
 ]
 
 [[package]]
-name = "password-hash"
-version = "0.1.2"
+name = "parity-scale-codec-derive"
+version = "2.2.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "85d8faea6c018131952a192ee55bd9394c51fc6f63294b668d97636e6f842d40"
+checksum = "40dbbfef7f0a1143c5b06e0d76a6278e25dac0bc1af4be51a0fbb73f07e7ad09"
+dependencies = [
+ "proc-macro-crate",
+ "proc-macro2",
+ "quote",
+ "syn",
+]
+
+[[package]]
+name = "password-hash"
+version = "0.2.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c1a5d4e9c205d2c1ae73b84aab6240e98218c0e72e63b50422cfb2d1ca952282"
 dependencies = [
  "base64ct",
- "rand_core 0.6.2",
+ "rand_core 0.6.3",
+ "subtle",
 ]
 
 [[package]]
 name = "pbkdf2"
-version = "0.7.5"
+version = "0.8.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "bf916dd32dd26297907890d99dc2740e33f6bd9073965af4ccff2967962f5508"
+checksum = "d95f5254224e617595d2cc3cc73ff0a5eaf2637519e25f03388154e9378b6ffa"
 dependencies = [
  "base64ct",
- "crypto-mac 0.10.0",
- "hmac 0.10.1",
+ "crypto-mac 0.11.0",
+ "hmac",
  "password-hash",
  "sha2 0.9.5",
 ]
@@ -1727,9 +1700,9 @@ dependencies = [
 
 [[package]]
 name = "pin-project-lite"
-version = "0.2.6"
+version = "0.2.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "dc0e1f259c92177c30a4c9d177246edd0a3568b25756a977d0632cf8fa37e905"
+checksum = "8d31d11c69a6b52a174b42bdc0c30e5e11670f90788b2c471c31c1d17d449443"
 
 [[package]]
 name = "pin-utils"
@@ -1739,11 +1712,12 @@ checksum = "8b870d8c151b6f2fb93e84a13146138f05d02ed11c7e7c54f8826aaaf7c9f184"
 
 [[package]]
 name = "pkcs8"
-version = "0.3.3"
+version = "0.7.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b4839a901843f3942576e65857f0ebf2e190ef7024d3c62a94099ba3f819ad1d"
+checksum = "09d156817ae0125e8aa5067710b0db24f0984830614f99875a70aa5e3b74db69"
 dependencies = [
  "der",
+ "spki",
 ]
 
 [[package]]
@@ -1760,9 +1734,9 @@ checksum = "ac74c624d6b2d21f425f752262f42188365d7b8ff1aff74c82e45136510a4857"
 
 [[package]]
 name = "primitive-types"
-version = "0.9.0"
+version = "0.9.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2415937401cb030a2a0a4d922483f945fa068f52a7dbb22ce0fe5f2b6f6adace"
+checksum = "06345ee39fbccfb06ab45f3a1a5798d9dafa04cb8921a76d227040003a234b0e"
 dependencies = [
  "fixed-hash",
  "impl-codec",
@@ -1771,6 +1745,16 @@ dependencies = [
  "uint",
 ]
 
+[[package]]
+name = "proc-macro-crate"
+version = "1.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "41fdbd1df62156fbc5945f4762632564d7d038153091c3fcf1067f6aef7cff92"
+dependencies = [
+ "thiserror",
+ "toml",
+]
+
 [[package]]
 name = "proc-macro-error"
 version = "1.0.4"
@@ -1809,9 +1793,9 @@ checksum = "bc881b2c22681370c6a780e47af9840ef841837bc98118431d4e1868bd0c1086"
 
 [[package]]
 name = "proc-macro2"
-version = "1.0.26"
+version = "1.0.27"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a152013215dca273577e18d2bf00fa862b89b24169fb78c4c95aeb07992c9cec"
+checksum = "f0d8caf72986c1a598726adc988bb5984792ef84f5ee5aa50209145ee8077038"
 dependencies = [
  "unicode-xid",
 ]
@@ -1852,14 +1836,14 @@ dependencies = [
 
 [[package]]
 name = "rand"
-version = "0.8.3"
+version = "0.8.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0ef9e7e66b4468674bfcb0c81af8b7fa0bb154fa9f28eb840da5c447baeb8d7e"
+checksum = "2e7573632e6454cf6b99d7aac4ccca54be06da05aca2ef7423d22d27d4d4bcd8"
 dependencies = [
  "libc",
- "rand_chacha 0.3.0",
- "rand_core 0.6.2",
- "rand_hc 0.3.0",
+ "rand_chacha 0.3.1",
+ "rand_core 0.6.3",
+ "rand_hc 0.3.1",
 ]
 
 [[package]]
@@ -1874,12 +1858,12 @@ dependencies = [
 
 [[package]]
 name = "rand_chacha"
-version = "0.3.0"
+version = "0.3.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e12735cf05c9e10bf21534da50a147b924d555dc7a547c42e6bb2d5b6017ae0d"
+checksum = "e6c10a63a0fa32252be49d21e7709d4d4baf8d231c2dbce1eaa8141b9b127d88"
 dependencies = [
  "ppv-lite86",
- "rand_core 0.6.2",
+ "rand_core 0.6.3",
 ]
 
 [[package]]
@@ -1893,11 +1877,11 @@ dependencies = [
 
 [[package]]
 name = "rand_core"
-version = "0.6.2"
+version = "0.6.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "34cf66eb183df1c5876e2dcf6b13d57340741e8dc255b48e40a26de954d06ae7"
+checksum = "d34f1408f55294453790c48b2f1ebbb1c5b4b7563eb1f418bcfcfdbb06ebb4e7"
 dependencies = [
- "getrandom 0.2.2",
+ "getrandom 0.2.3",
 ]
 
 [[package]]
@@ -1911,27 +1895,27 @@ dependencies = [
 
 [[package]]
 name = "rand_hc"
-version = "0.3.0"
+version = "0.3.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3190ef7066a446f2e7f42e239d161e905420ccab01eb967c9eb27d21b2322a73"
+checksum = "d51e9f596de227fda2ea6c84607f5558e196eeaf43c986b724ba4fb8fdf497e7"
 dependencies = [
- "rand_core 0.6.2",
+ "rand_core 0.6.3",
 ]
 
 [[package]]
 name = "redox_syscall"
-version = "0.2.5"
+version = "0.2.9"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "94341e4e44e24f6b591b59e47a8a027df12e008d73fd5672dbea9cc22f4507d9"
+checksum = "5ab49abadf3f9e1c4bc499e8845e152ad87d2ad2d30371841171169e9d75feee"
 dependencies = [
  "bitflags",
 ]
 
 [[package]]
 name = "regex"
-version = "1.4.5"
+version = "1.5.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "957056ecddbeba1b26965114e191d2e8589ce74db242b6ea25fc4062427a5c19"
+checksum = "d07a8629359eb56f1e2fb1652bb04212c072a87ba68546a04065d525673ac461"
 dependencies = [
  "aho-corasick",
  "memchr",
@@ -1940,9 +1924,9 @@ dependencies = [
 
 [[package]]
 name = "regex-syntax"
-version = "0.6.23"
+version = "0.6.25"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "24d5f089152e60f62d28b835fbff2cd2e8dc0baf1ac13343bef92ab7eed84548"
+checksum = "f497285884f3fcff424ffc933e56d7cbca511def0c9831a7f9b5f6153e3cc89b"
 
 [[package]]
 name = "remove_dir_all"
@@ -2030,9 +2014,9 @@ dependencies = [
 
 [[package]]
 name = "rusb"
-version = "0.7.0"
+version = "0.8.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c470dc7dc6e4710b6f85e9c4aa4650bc742260b39a36328180578db76fa258c1"
+checksum = "d9a5084628cc5be77b1c750b3e5ee0cc519d2f2491b3f06b78b3aac3328b00ad"
 dependencies = [
  "libc",
  "libusb1-sys",
@@ -2040,9 +2024,9 @@ dependencies = [
 
 [[package]]
 name = "rustc-demangle"
-version = "0.1.18"
+version = "0.1.20"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6e3bad0ee36814ca07d7968269dd4b7ec89ec2da10c4bb613928d3077083c232"
+checksum = "dead70b0b5e03e9c814bcb6b01e03e68f7c57a80aa48c72ec92152ab3e818d49"
 
 [[package]]
 name = "rustc-hex"
@@ -2052,9 +2036,9 @@ checksum = "3e75f6a532d0fd9f7f13144f392b6ad56a32696bfcd9c78f797f16bbb6f072d6"
 
 [[package]]
 name = "rustls"
-version = "0.19.0"
+version = "0.19.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "064fd21ff87c6e87ed4506e68beb42459caa4a0e2eb144932e6776768556980b"
+checksum = "35edb675feee39aec9c99fa5ff985081995a06d594114ae14cbe797ad7b7a6d7"
 dependencies = [
  "base64 0.13.0",
  "log",
@@ -2071,9 +2055,9 @@ checksum = "71d301d4193d031abdd79ff7e3dd721168a9572ef3fe51a1517aba235bd8f86e"
 
 [[package]]
 name = "salsa20"
-version = "0.7.2"
+version = "0.8.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "399f290ffc409596022fce5ea5d4138184be4784f2b28c62c59f0d8389059a15"
+checksum = "1c7c5f10864beba947e1a1b43f3ef46c8cc58d1c2ae549fa471713e8ff60787a"
 dependencies = [
  "cipher",
 ]
@@ -2090,12 +2074,12 @@ dependencies = [
 
 [[package]]
 name = "scrypt"
-version = "0.6.5"
+version = "0.7.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "19230d10daad7f163d8c1fc8edf84fbe52ac71c2ebe5adf3f763aa1557b843e3"
+checksum = "879588d8f90906e73302547e20fffefdd240eb3e0e744e142321f5d49dea0518"
 dependencies = [
  "base64ct",
- "hmac 0.10.1",
+ "hmac",
  "password-hash",
  "pbkdf2",
  "salsa20",
@@ -2104,9 +2088,9 @@ dependencies = [
 
 [[package]]
 name = "sct"
-version = "0.6.0"
+version = "0.6.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e3042af939fca8c3453b7af0f1c66e533a15a86169e39de2657310ade8f98d3c"
+checksum = "b362b83898e0e69f38515b82ee15aa80636befe47c3b6d3d89a911e78fc228ce"
 dependencies = [
  "ring",
  "untrusted",
@@ -2114,9 +2098,9 @@ dependencies = [
 
 [[package]]
 name = "security-framework"
-version = "2.2.0"
+version = "2.3.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3670b1d2fdf6084d192bc71ead7aabe6c06aa2ea3fbd9cc3ac111fa5c2b1bd84"
+checksum = "23a2ac85147a3a11d77ecf1bc7166ec0b92febfa4461c37944e180f319ece467"
 dependencies = [
  "bitflags",
  "core-foundation",
@@ -2127,9 +2111,9 @@ dependencies = [
 
 [[package]]
 name = "security-framework-sys"
-version = "2.2.0"
+version = "2.3.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3676258fd3cfe2c9a0ec99ce3038798d847ce3e4bb17746373eb9f0f1ac16339"
+checksum = "7e4effb91b4b8b6fb7732e670b6cee160278ff8e6bf485c7805d9e319d76e284"
 dependencies = [
  "core-foundation-sys",
  "libc",
@@ -2137,9 +2121,9 @@ dependencies = [
 
 [[package]]
 name = "serde"
-version = "1.0.125"
+version = "1.0.126"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "558dc50e1a5a5fa7112ca2ce4effcb321b0300c0d4ccf0776a9f60cd89031171"
+checksum = "ec7505abeacaec74ae4778d9d9328fe5a5d04253220a85c4ee022239fc996d03"
 dependencies = [
  "serde_derive",
 ]
@@ -2156,9 +2140,9 @@ dependencies = [
 
 [[package]]
 name = "serde_derive"
-version = "1.0.125"
+version = "1.0.126"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b093b7a2bb58203b5da3056c05b4ec1fed827dcfdb37347a8841695263b3d06d"
+checksum = "963a7dbc9895aeac7ac90e74f34a5d5261828f79df35cbed41e10189d3804d43"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -2190,13 +2174,13 @@ dependencies = [
 
 [[package]]
 name = "sha-1"
-version = "0.9.4"
+version = "0.9.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "dfebf75d25bd900fd1e7d11501efab59bc846dbc76196839663e6637bba9f25f"
+checksum = "8c4cfa741c5832d0ef7fab46cabed29c2aae926db0b11bb2069edd8db5e64e16"
 dependencies = [
  "block-buffer 0.9.0",
  "cfg-if 1.0.0",
- "cpuid-bool",
+ "cpufeatures",
  "digest 0.9.0",
  "opaque-debug 0.3.0",
 ]
@@ -2240,20 +2224,20 @@ dependencies = [
 
 [[package]]
 name = "signature"
-version = "1.2.2"
+version = "1.3.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "29f060a7d147e33490ec10da418795238fd7545bba241504d6b31a409f2e6210"
+checksum = "c19772be3c4dd2ceaacf03cb41d5885f2a02c4d8804884918e3a258480803335"
 dependencies = [
  "digest 0.9.0",
- "rand_core 0.5.1",
+ "rand_core 0.6.3",
  "signature_derive",
 ]
 
 [[package]]
 name = "signature_derive"
-version = "1.0.0-pre.2"
+version = "1.0.0-pre.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b0656c180103507cca4b82519908e813225b2f6b90b2bd59ee119f46155ae872"
+checksum = "ffba76095b73f87680d2cf325a8000d5fc507ca6c20c4f7e2747405550620d90"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -2263,9 +2247,9 @@ dependencies = [
 
 [[package]]
 name = "slab"
-version = "0.4.2"
+version = "0.4.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c111b5bd5695e56cffe5129854aa230b39c93a305372fdbb2668ca2394eea9f8"
+checksum = "f173ac3d1a7e3b28003f40de0b5ce7fe2710f9b9dc3fc38664cebee46b3b6527"
 
 [[package]]
 name = "socket2"
@@ -2283,18 +2267,21 @@ version = "0.5.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "6e63cff320ae2c57904679ba7cb63280a3dc4613885beafb148ee7bf9aa9042d"
 
+[[package]]
+name = "spki"
+version = "0.4.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "987637c5ae6b3121aba9d513f869bd2bff11c4cc086c22473befd6649c0bd521"
+dependencies = [
+ "der",
+]
+
 [[package]]
 name = "static_assertions"
 version = "1.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "a2eb9349b6444b326872e140eb1cf5e7c522154d69e7a0ffb0fb81c06b37543f"
 
-[[package]]
-name = "subtle"
-version = "1.0.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2d67a5a62ba6e01cb2192ff309324cb4875d0c451d55fe2319433abe7a05a8ee"
-
 [[package]]
 name = "subtle"
 version = "2.4.0"
@@ -2303,9 +2290,9 @@ checksum = "1e81da0851ada1f3e9d4312c704aa4f8806f0f9d69faaf8df2f3464b4a9437c2"
 
 [[package]]
 name = "syn"
-version = "1.0.68"
+version = "1.0.73"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3ce15dd3ed8aa2f8eeac4716d6ef5ab58b6b9256db41d7e1a0224c2788e8fd87"
+checksum = "f71489ff30030d2ae598524f61326b902466f72a0fb1a8564c001cc63425bcc7"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -2338,7 +2325,7 @@ checksum = "dac1c663cfc93810f88aed9b8941d48cabf856a1b111c29a40439018d870eb22"
 dependencies = [
  "cfg-if 1.0.0",
  "libc",
- "rand 0.8.3",
+ "rand 0.8.4",
  "redox_syscall",
  "remove_dir_all",
  "winapi",
@@ -2385,9 +2372,9 @@ dependencies = [
 
 [[package]]
 name = "tinyvec"
-version = "1.1.1"
+version = "1.2.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "317cca572a0e89c3ce0ca1f1bdc9369547fe318a683418e42ac8f59d14701023"
+checksum = "5b5220f05bb7de7f3f53c7c065e1199b3172696fe2db9f9c4d8ad9b4ee74c342"
 dependencies = [
  "tinyvec_macros",
 ]
@@ -2400,9 +2387,9 @@ checksum = "cda74da7e1a664f795bb1f8a87ec406fb89a02522cf6e50620d016add6dbbf5c"
 
 [[package]]
 name = "tokio"
-version = "1.5.0"
+version = "1.8.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "83f0c8e7c0addab50b663055baf787d0af7f413a46e6e7fb9559a4e4db7137a5"
+checksum = "570c2eb13b3ab38208130eccd41be92520388791207fde783bda7c1e8ace28d4"
 dependencies = [
  "autocfg",
  "bytes",
@@ -2412,13 +2399,14 @@ dependencies = [
  "num_cpus",
  "pin-project-lite",
  "tokio-macros",
+ "winapi",
 ]
 
 [[package]]
 name = "tokio-macros"
-version = "1.1.0"
+version = "1.2.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "caf7b11a536f46a809a8a9f0bb4237020f70ecbf115b842360afb127ea2fda57"
+checksum = "c49e3df43841dafb86046472506755d8501c5615673955f6aa17181125d13c37"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -2479,6 +2467,15 @@ dependencies = [
  "tokio",
 ]
 
+[[package]]
+name = "toml"
+version = "0.5.8"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a31142970826733df8241ef35dc040ef98c679ab14d7c3e54d827099b3acecaa"
+dependencies = [
+ "serde",
+]
+
 [[package]]
 name = "tower-service"
 version = "0.3.1"
@@ -2535,7 +2532,7 @@ dependencies = [
  "input_buffer",
  "log",
  "native-tls",
- "rand 0.8.3",
+ "rand 0.8.4",
  "rustls",
  "sha-1",
  "thiserror",
@@ -2553,9 +2550,9 @@ checksum = "879f6906492a7cd215bfa4cf595b600146ccfac0c79bcbd1f3000162af5e8b06"
 
 [[package]]
 name = "uint"
-version = "0.9.0"
+version = "0.9.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e11fe9a9348741cf134085ad57c249508345fe16411b3d7fb4ff2da2f1d6382e"
+checksum = "6470ab50f482bde894a037a57064480a246dbfdd5960bd65a44824693f08da5f"
 dependencies = [
  "byteorder",
  "crunchy",
@@ -2565,27 +2562,27 @@ dependencies = [
 
 [[package]]
 name = "unicode-bidi"
-version = "0.3.4"
+version = "0.3.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "49f2bd0c6468a8230e1db229cff8029217cf623c767ea5d60bfbd42729ea54d5"
+checksum = "eeb8be209bb1c96b7c177c7420d26e04eccacb0eeae6b980e35fcb74678107e0"
 dependencies = [
  "matches",
 ]
 
 [[package]]
 name = "unicode-normalization"
-version = "0.1.17"
+version = "0.1.19"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "07fbfce1c8a97d547e8b5334978438d9d6ec8c20e38f56d4a4374d181493eaef"
+checksum = "d54590932941a9e9266f0832deed84ebe1bf2e4c9e4a3554d393d18f5e854bf9"
 dependencies = [
  "tinyvec",
 ]
 
 [[package]]
 name = "unicode-xid"
-version = "0.2.1"
+version = "0.2.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f7fe0bb3479651439c9112f72b6c505038574c9fbb575ed1bf3b797fa39dd564"
+checksum = "8ccb82d61f80a663efe1f787a51b16b5a51e3314d6ac365b08639f52387b33f3"
 
 [[package]]
 name = "untrusted"
@@ -2607,9 +2604,9 @@ dependencies = [
 
 [[package]]
 name = "utf-8"
-version = "0.7.5"
+version = "0.7.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "05e42f7c18b8f902290b009cde6d651262f956c98bc51bca4cd1d511c9cd85c7"
+checksum = "09cc8ee72d2a9becf2f2febe0205bbed8fc6615b7cb429ad062dc7b7ddd036a9"
 
 [[package]]
 name = "uuid"
@@ -2617,15 +2614,15 @@ version = "0.8.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "bc5cf98d8186244414c848017f0e2676b3fcb46807f6668a97dfe67359a3c4b7"
 dependencies = [
- "getrandom 0.2.2",
+ "getrandom 0.2.3",
  "serde",
 ]
 
 [[package]]
 name = "vcpkg"
-version = "0.2.11"
+version = "0.2.15"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b00bca6106a5e23f3eee943593759b7fcddb00554332e856d990c893966879fb"
+checksum = "accd4ea62f7bb7a82fe23066fb0957d48ef677f6eeb8215f372f52e48bb32426"
 
 [[package]]
 name = "version_check"
@@ -2663,9 +2660,9 @@ checksum = "fd6fbd9a79829dd1ad0cc20627bf1ed606756a7f77edff7b66b7064f9cb327c6"
 
 [[package]]
 name = "wasm-bindgen"
-version = "0.2.73"
+version = "0.2.74"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "83240549659d187488f91f33c0f8547cbfef0b2088bc470c116d1d260ef623d9"
+checksum = "d54ee1d4ed486f78874278e63e4069fc1ab9f6a18ca492076ffb90c5eb2997fd"
 dependencies = [
  "cfg-if 1.0.0",
  "serde",
@@ -2675,9 +2672,9 @@ dependencies = [
 
 [[package]]
 name = "wasm-bindgen-backend"
-version = "0.2.73"
+version = "0.2.74"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ae70622411ca953215ca6d06d3ebeb1e915f0f6613e3b495122878d7ebec7dae"
+checksum = "3b33f6a0694ccfea53d94db8b2ed1c3a8a4c86dd936b13b9f0a15ec4a451b900"
 dependencies = [
  "bumpalo",
  "lazy_static",
@@ -2690,9 +2687,9 @@ dependencies = [
 
 [[package]]
 name = "wasm-bindgen-futures"
-version = "0.4.23"
+version = "0.4.24"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "81b8b767af23de6ac18bf2168b690bed2902743ddf0fb39252e36f9e2bfc63ea"
+checksum = "5fba7978c679d53ce2d0ac80c8c175840feb849a161664365d1287b41f2e67f1"
 dependencies = [
  "cfg-if 1.0.0",
  "js-sys",
@@ -2702,9 +2699,9 @@ dependencies = [
 
 [[package]]
 name = "wasm-bindgen-macro"
-version = "0.2.73"
+version = "0.2.74"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3e734d91443f177bfdb41969de821e15c516931c3c3db3d318fa1b68975d0f6f"
+checksum = "088169ca61430fe1e58b8096c24975251700e7b1f6fd91cc9d59b04fb9b18bd4"
 dependencies = [
  "quote",
  "wasm-bindgen-macro-support",
@@ -2712,9 +2709,9 @@ dependencies = [
 
 [[package]]
 name = "wasm-bindgen-macro-support"
-version = "0.2.73"
+version = "0.2.74"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d53739ff08c8a68b0fdbcd54c372b8ab800b1449ab3c9d706503bc7dd1621b2c"
+checksum = "be2241542ff3d9f241f5e2cb6dd09b37efe786df8851c54957683a49f0987a97"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -2725,15 +2722,15 @@ dependencies = [
 
 [[package]]
 name = "wasm-bindgen-shared"
-version = "0.2.73"
+version = "0.2.74"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d9a543ae66aa233d14bb765ed9af4a33e81b8b58d1584cf1b47ff8cd0b9e4489"
+checksum = "d7cff876b8f18eed75a66cf49b65e7f967cb354a7aa16003fb55dbfd25b44b4f"
 
 [[package]]
 name = "web-sys"
-version = "0.3.50"
+version = "0.3.51"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a905d57e488fec8861446d3393670fb50d27a262344013181c2cdf9fff5481be"
+checksum = "e828417b379f3df7111d3a2a9e5753706cae29c41f7c4029ee9fd77f3e09e582"
 dependencies = [
  "js-sys",
  "wasm-bindgen",
@@ -2797,9 +2794,9 @@ checksum = "85e60b0d1b5f99db2556934e21937020776a5d31520bf169e851ac44e6420214"
 
 [[package]]
 name = "yubihsm"
-version = "0.38.0"
+version = "0.39.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "65e9d853967e489e1165fcb2983f77766091297451b75ccdf7e6e5f57a15a006"
+checksum = "0c32cd8146a6966df8137f5dbb77010ae5253e6937b21d1fd6ed55213478b4d0"
 dependencies = [
  "aes",
  "anomaly",
@@ -2813,19 +2810,19 @@ dependencies = [
  "ed25519",
  "ed25519-dalek",
  "harp",
- "hmac 0.10.1",
+ "hmac",
  "k256",
  "log",
  "p256",
  "p384",
  "pbkdf2",
- "rand_core 0.5.1",
+ "rand_core 0.6.3",
  "rusb",
  "serde",
  "serde_json",
  "sha2 0.9.5",
  "signature",
- "subtle 2.4.0",
+ "subtle",
  "thiserror",
  "uuid",
  "zeroize",
@@ -2833,18 +2830,18 @@ dependencies = [
 
 [[package]]
 name = "zeroize"
-version = "1.2.0"
+version = "1.3.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "81a974bcdd357f0dca4d41677db03436324d45a4c9ed2d0b873a5a360ce41c36"
+checksum = "4756f7db3f7b5574938c3eb1c117038b8e07f95ee6718c0efad4ac21508f1efd"
 dependencies = [
  "zeroize_derive",
 ]
 
 [[package]]
 name = "zeroize_derive"
-version = "1.0.1"
+version = "1.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c3f369ddb18862aba61aa49bf31e74d29f0f162dec753063200e1dc084345d16"
+checksum = "a2c1e130bebaeab2f23886bf9acbaca14b092408c452543c857f66399cd6dab1"
 dependencies = [
  "proc-macro2",
  "quote",
diff --git a/ethers-contract/Cargo.toml b/ethers-contract/Cargo.toml
index af687181..70cf4729 100644
--- a/ethers-contract/Cargo.toml
+++ b/ethers-contract/Cargo.toml
@@ -1,7 +1,7 @@
 [package]
 name = "ethers-contract"
 license = "MIT OR Apache-2.0"
-version = "0.2.2"
+version = "0.4.0"
 authors = ["Georgios Konstantopoulos <me@gakonst.com>"]
 edition = "2018"
 description = "Smart contract bindings for the ethers-rs crate"
@@ -10,11 +10,11 @@ repository = "https://github.com/gakonst/ethers-rs"
 keywords = ["ethereum", "web3", "celo", "ethers"]
 
 [dependencies]
-ethers-providers = { version = "0.2.2", path = "../ethers-providers", default-features = false }
-ethers-core = { version = "0.2.2", path = "../ethers-core", default-features = false }
+ethers-providers = { version = "0.4.0", path = "../ethers-providers", default-features = false }
+ethers-core = { version = "0.4.0", path = "../ethers-core", default-features = false }
 
-ethers-contract-abigen = { version = "0.2.2", path = "ethers-contract-abigen", optional = true }
-ethers-contract-derive = { version = "0.2.2", path = "ethers-contract-derive", optional = true }
+ethers-contract-abigen = { version = "0.4.0", path = "ethers-contract-abigen", optional = true }
+ethers-contract-derive = { version = "0.4.0", path = "ethers-contract-derive", optional = true }
 
 serde = { version = "1.0.124", default-features = false }
 serde_json = { version = "1.0.64", default-features = false }
@@ -25,12 +25,12 @@ futures-util = { version = "0.3.15", default-features = false }
 hex = { version = "0.4.3", default-features = false, features = ["std"] }
 
 [dev-dependencies]
-ethers = { version = "0.2", path = "../ethers" }
-ethers-providers = { version = "0.2", path = "../ethers-providers", default-features = false, features = ["ws"] }
+ethers = { version = "0.4.0", path = "../ethers" }
+ethers-providers = { version = "0.4.0", path = "../ethers-providers", default-features = false, features = ["ws"] }
 tokio = { version = "1.5", default-features = false, features = ["macros"] }
 
-ethers-signers = { version = "0.2", path = "../ethers-signers" }
-ethers-middleware = { version = "0.2", path = "../ethers-middleware" }
+ethers-signers = { version = "0.4.0", path = "../ethers-signers" }
+ethers-middleware = { version = "0.4.0", path = "../ethers-middleware" }
 
 [features]
 abigen = ["ethers-contract-abigen", "ethers-contract-derive"]
diff --git a/ethers-contract/ethers-contract-abigen/Cargo.toml b/ethers-contract/ethers-contract-abigen/Cargo.toml
index b63d02ad..2a24d68a 100644
--- a/ethers-contract/ethers-contract-abigen/Cargo.toml
+++ b/ethers-contract/ethers-contract-abigen/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "ethers-contract-abigen"
-version = "0.2.2"
+version = "0.4.0"
 authors = ["Nicholas Rodrigues Lordello <nlordell@gmail.com>", "Georgios Konstantopoulos <me@gakonst.com>"]
 edition = "2018"
 license = "MIT OR Apache-2.0"
@@ -10,7 +10,7 @@ repository = "https://github.com/gakonst/ethers-rs"
 keywords = ["ethereum", "web3", "celo", "ethers"]
 
 [dependencies]
-ethers-core = { version = "0.2.2", path = "../../ethers-core" }
+ethers-core = { version = "0.4.0", path = "../../ethers-core" }
 
 anyhow = "1.0.37"
 Inflector = "0.11"
diff --git a/ethers-contract/ethers-contract-derive/Cargo.toml b/ethers-contract/ethers-contract-derive/Cargo.toml
index 1a6c14ac..60e96539 100644
--- a/ethers-contract/ethers-contract-derive/Cargo.toml
+++ b/ethers-contract/ethers-contract-derive/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "ethers-contract-derive"
-version = "0.2.2"
+version = "0.4.0"
 authors = ["Nicholas Rodrigues Lordello <nlordell@gmail.com>", "Georgios Konstantopoulos <me@gakonst.com>"]
 edition = "2018"
 license = "MIT OR Apache-2.0"
@@ -13,8 +13,8 @@ keywords = ["ethereum", "web3", "celo", "ethers"]
 proc-macro = true
 
 [dependencies]
-ethers-core = { version = "0.2.2", path = "../../ethers-core" }
-ethers-contract-abigen = { version = "0.2.2", path = "../ethers-contract-abigen" }
+ethers-core = { version = "0.4.0", path = "../../ethers-core" }
+ethers-contract-abigen = { version = "0.4.0", path = "../ethers-contract-abigen" }
 
 serde_json = "1.0.53"
 hex = { version = "0.4.3", default-features = false, features = ["std"] }
diff --git a/ethers-core/Cargo.toml b/ethers-core/Cargo.toml
index 9fa9abe9..e59f707b 100644
--- a/ethers-core/Cargo.toml
+++ b/ethers-core/Cargo.toml
@@ -1,7 +1,7 @@
 [package]
 name = "ethers-core"
 license = "MIT OR Apache-2.0"
-version = "0.2.2"
+version = "0.4.0"
 authors = ["Georgios Konstantopoulos <me@gakonst.com>"]
 edition = "2018"
 description = "Core structures for the ethers-rs crate"
@@ -15,11 +15,11 @@ ethabi = { version = "14.0.0", default-features = false }
 arrayvec = { version = "0.5.1", default-features = false }
 
 # crypto
-ecdsa = { version = "0.10.2", default-features = false, features = ["std"] }
-elliptic-curve = { version = "0.10.3", default-features = false }
+ecdsa = { version = "0.12.2", default-features = false, features = ["std"] }
+elliptic-curve = { version = "0.10.0", default-features = false }
 generic-array = { version = "0.14.4", default-features = false }
-k256 = { version = "0.7.3", default-features = false, features = ["keccak256", "ecdsa"] }
-rand = { version = "0.7.1", default-features = false }
+k256 = { version = "0.9.4", default-features = false, features = ["keccak256", "ecdsa"] }
+rand = { version = "0.8.4", default-features = false }
 tiny-keccak = { version = "2.0.2", default-features = false }
 
 # misc
@@ -39,7 +39,7 @@ tokio = { version = "1.5", default-features = false, optional = true}
 futures-util = { version = "0.3.15", default-features = false, optional = true}
 
 [dev-dependencies]
-ethers = { version = "0.2", path = "../ethers" }
+ethers = { version = "0.4.0", path = "../ethers" }
 
 serde_json = { version = "1.0.64", default-features = false }
 bincode = { version = "1.3.3", default-features = false }
diff --git a/ethers-core/src/utils/mod.rs b/ethers-core/src/utils/mod.rs
index f095c92c..8212fd60 100644
--- a/ethers-core/src/utils/mod.rs
+++ b/ethers-core/src/utils/mod.rs
@@ -123,7 +123,7 @@ pub fn get_create2_address(
 /// Converts a K256 SigningKey to an Ethereum Address
 pub fn secret_key_to_address(secret_key: &SigningKey) -> Address {
     // TODO: Can we do this in a better way?
-    let uncompressed_pub_key = K256PublicKey::from(&secret_key.verify_key()).decompress();
+    let uncompressed_pub_key = K256PublicKey::from(&secret_key.verifying_key()).decompress();
     let public_key = uncompressed_pub_key.unwrap().to_bytes();
     debug_assert_eq!(public_key[0], 0x04);
     let hash = keccak256(&public_key[1..]);
diff --git a/ethers-middleware/Cargo.toml b/ethers-middleware/Cargo.toml
index f3424642..9951658c 100644
--- a/ethers-middleware/Cargo.toml
+++ b/ethers-middleware/Cargo.toml
@@ -1,7 +1,7 @@
 [package]
 name = "ethers-middleware"
 license = "MIT OR Apache-2.0"
-version = "0.2.2"
+version = "0.4.0"
 authors = ["Georgios Konstantopoulos <me@gakonst.com>"]
 edition = "2018"
 description = "Middleware implementations for the ethers-rs crate"
@@ -14,10 +14,10 @@ all-features = true
 rustdoc-args = ["--cfg", "docsrs"]
 
 [dependencies]
-ethers-contract = { version = "0.2.2", path = "../ethers-contract", default-features = false, features = ["abigen"] }
-ethers-core = { version = "0.2.2", path = "../ethers-core", default-features = false }
-ethers-providers = { version = "0.2.2", path = "../ethers-providers", default-features = false }
-ethers-signers = { version = "0.2.2", path = "../ethers-signers", default-features = false }
+ethers-contract = { version = "0.4.0", path = "../ethers-contract", default-features = false, features = ["abigen"] }
+ethers-core = { version = "0.4.0", path = "../ethers-core", default-features = false }
+ethers-providers = { version = "0.4.0", path = "../ethers-providers", default-features = false }
+ethers-signers = { version = "0.4.0", path = "../ethers-signers", default-features = false }
 
 async-trait = { version = "0.1.50", default-features = false }
 serde = { version = "1.0.124", default-features = false, features = ["derive"] }
@@ -35,10 +35,10 @@ serde_json = { version = "1.0.64", default-features = false }
 tokio = { version = "1.5" }
 
 [dev-dependencies]
-ethers = { version = "0.2", path = "../ethers" }
+ethers = { version = "0.4.0", path = "../ethers" }
 futures-executor = { version = "0.3.14", features = ["thread-pool"] }
 hex = { version = "0.4.3", default-features = false, features = ["std"] }
-rand = { version = "0.7.3", default-features = false }
+rand = { version = "0.8.4", default-features = false }
 tokio = { version = "1.5", default-features = false, features = ["rt", "macros", "time"] }
 
 [features]
diff --git a/ethers-providers/Cargo.toml b/ethers-providers/Cargo.toml
index dc9c1ec2..dda74f42 100644
--- a/ethers-providers/Cargo.toml
+++ b/ethers-providers/Cargo.toml
@@ -1,7 +1,7 @@
 [package]
 name = "ethers-providers"
 license = "MIT OR Apache-2.0"
-version = "0.2.2"
+version = "0.4.0"
 authors = ["Georgios Konstantopoulos <me@gakonst.com>"]
 edition = "2018"
 description = "Provider implementations for the ethers-rs crate"
@@ -14,7 +14,7 @@ all-features = true
 rustdoc-args = ["--cfg", "docsrs"]
 
 [dependencies]
-ethers-core = { version = "0.2.2", path = "../ethers-core", default-features = false }
+ethers-core = { version = "0.4.0", path = "../ethers-core", default-features = false }
 
 async-trait = { version = "0.1.50", default-features = false }
 hex = { version = "0.4.3", default-features = false, features = ["std"] }
@@ -43,7 +43,7 @@ tokio-util = { version = "0.6.7", default-features = false, features = ["io"], o
 bytes = { version  = "1.0.1", default-features = false, optional = true }
 
 [dev-dependencies]
-ethers = { version = "0.2", path = "../ethers" }
+ethers = { version = "0.4.0", path = "../ethers" }
 tokio = { version = "1.5", default-features = false, features = ["rt", "macros"] }
 tempfile = "3.2.0"
 
diff --git a/ethers-signers/Cargo.toml b/ethers-signers/Cargo.toml
index d2a6946e..94fb8271 100644
--- a/ethers-signers/Cargo.toml
+++ b/ethers-signers/Cargo.toml
@@ -1,7 +1,7 @@
 [package]
 name = "ethers-signers"
 license = "MIT OR Apache-2.0"
-version = "0.2.2"
+version = "0.4.0"
 authors = ["Georgios Konstantopoulos <me@gakonst.com>"]
 edition = "2018"
 description = "Signer implementations for the ethers-rs crate"
@@ -14,24 +14,24 @@ all-features = true
 rustdoc-args = ["--cfg", "docsrs"]
 
 [dependencies]
-ethers-core = { version = "0.2.2", path = "../ethers-core" }
-thiserror = { version = "1.0.26", default-features = false }
-coins-bip32 = "0.2.2"
-coins-bip39 = "0.2.2"
+ethers-core = { version = "0.4.0", path = "../ethers-core" }
+thiserror = { version = "1.0.24", default-features = false }
+coins-bip32 = "0.3.0"
+coins-bip39 = "0.3.0"
 coins-ledger = { version = "0.1.0", default-features = false, optional = true }
-eth-keystore = { version = "0.2.1" }
+eth-keystore = { version = "0.3.0" }
 hex = { version = "0.4.3", default-features = false, features = ["std"] }
 async-trait = { version = "0.1.50", default-features = false }
-elliptic-curve = { version = "0.10.3", default-features = false }
-sha2 = { version = "0.9.5", default-features = false }
-rand = { version = "0.7.3", default-features = false }
-yubihsm = { version = "0.38.0", features = ["secp256k1", "http", "usb"], optional = true }
-futures-util = "0.3.15"
+elliptic-curve = { version = "0.10.0", default-features = false }
+sha2 = { version = "0.9.3", default-features = false }
+rand = { version = "0.8.4", default-features = false }
+yubihsm = { version = "0.39.0", features = ["secp256k1", "http", "usb"], optional = true }
+futures-util = "0.3.14"
 futures-executor = "0.3.14"
 
 [dev-dependencies]
-ethers = { version = "0.2", path = "../ethers" }
-yubihsm = { version = "0.38.0", features = ["secp256k1", "usb", "mockhsm"] }
+ethers = { version = "0.4.0", path = "../ethers" }
+yubihsm = { version = "0.39.0", features = ["secp256k1", "usb", "mockhsm"] }
 
 tempfile = "3.2.0"
 tokio = { version = "1.5", default-features = false, features = ["macros"] }
diff --git a/ethers-signers/src/wallet/private_key.rs b/ethers-signers/src/wallet/private_key.rs
index 8e124932..23f202a2 100644
--- a/ethers-signers/src/wallet/private_key.rs
+++ b/ethers-signers/src/wallet/private_key.rs
@@ -4,6 +4,7 @@ use super::Wallet;
 use crate::wallet::mnemonic::MnemonicBuilderError;
 use coins_bip32::Bip32Error;
 use coins_bip39::MnemonicError;
+use elliptic_curve::rand_core;
 use eth_keystore::KeystoreError;
 use ethers_core::{
     k256::ecdsa::{self, SigningKey},
@@ -56,7 +57,7 @@ impl Wallet<SigningKey> {
     pub fn new_keystore<P, R, S>(dir: P, rng: &mut R, password: S) -> Result<Self, WalletError>
     where
         P: AsRef<Path>,
-        R: Rng + CryptoRng,
+        R: Rng + CryptoRng + rand_core::CryptoRng,
         S: AsRef<[u8]>,
     {
         let (secret, _) = eth_keystore::new(dir, rng, password)?;
diff --git a/ethers/Cargo.toml b/ethers/Cargo.toml
index 4e6fe138..9b498db5 100644
--- a/ethers/Cargo.toml
+++ b/ethers/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "ethers"
-version = "0.2.2"
+version = "0.4.0"
 authors = ["Georgios Konstantopoulos <me@gakonst.com>"]
 license = "MIT OR Apache-2.0"
 edition = "2018"
@@ -34,17 +34,17 @@ ws = ["ethers-providers/ws"]
 abigen = ["ethers-contract/abigen"]
 
 [dependencies]
-ethers-contract = { version = "0.2.2", path = "../ethers-contract" }
-ethers-core = { version = "0.2.2", path = "../ethers-core", features = ["setup"] }
-ethers-providers = { version = "0.2.2", path = "../ethers-providers" }
-ethers-signers = { version = "0.2.2", path = "../ethers-signers" }
-ethers-middleware = { version = "0.2.2", path = "../ethers-middleware" }
+ethers-contract = { version = "0.4.0", path = "../ethers-contract" }
+ethers-core = { version = "0.4.0", path = "../ethers-core", features = ["setup"] }
+ethers-providers = { version = "0.4.0", path = "../ethers-providers" }
+ethers-signers = { version = "0.4.0", path = "../ethers-signers" }
+ethers-middleware = { version = "0.4.0", path = "../ethers-middleware" }
 
 [dev-dependencies]
-ethers-contract = { version = "0.2", path = "../ethers-contract", features = ["abigen"] }
+ethers-contract = { version = "0.4.0", path = "../ethers-contract", features = ["abigen"] }
 
 anyhow = "1.0.39"
-rand = "0.7"
+rand = "0.8.4"
 serde = { version = "1.0.124", features = ["derive"] }
 serde_json = "1.0.64"
 tokio = { version = "1.5", features = ["macros", "rt-multi-thread"] }