diff --git a/Cargo.lock b/Cargo.lock
index 9f7dea94..b671b963 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -155,12 +155,6 @@ dependencies = [
  "rustc-demangle",
 ]
 
-[[package]]
-name = "base-x"
-version = "0.2.8"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a4521f3e3d031370679b3b140beb36dfe4801b09ac77e30c61941f97df3ef28b"
-
 [[package]]
 name = "base58"
 version = "0.1.0"
@@ -417,7 +411,7 @@ dependencies = [
  "num-integer",
  "num-traits",
  "serde",
- "time 0.1.43",
+ "time",
  "winapi",
 ]
 
@@ -526,12 +520,6 @@ version = "0.6.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "fdab415d6744056100f40250a66bc430c1a46f7a02e20bc11c94c79a0f0464df"
 
-[[package]]
-name = "const_fn"
-version = "0.4.8"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f92cfa0fd5690b3cf8c1ef2cabbd9b7ef22fa53cf5e1f92b05103f6d5d1cf6e7"
-
 [[package]]
 name = "constant_time_eq"
 version = "0.1.5"
@@ -705,12 +693,6 @@ dependencies = [
  "winapi",
 ]
 
-[[package]]
-name = "discard"
-version = "1.0.4"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "212d0f5754cb6769937f4501cc0e67f4f4483c8d2c3e1e922ee9edbe4ab4c7c0"
-
 [[package]]
 name = "ecdsa"
 version = "0.12.4"
@@ -1512,13 +1494,12 @@ dependencies = [
 
 [[package]]
 name = "instant"
-version = "0.1.11"
+version = "0.1.12"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "716d3d89f35ac6a34fd0eed635395f4c3b76fa889338a4632e5231a8684216bd"
+checksum = "7a5bbe824c507c5da5956355e86a746d82e0e1464f65d862cc5e71da70e94b2c"
 dependencies = [
  "cfg-if 1.0.0",
  "js-sys",
- "time 0.2.27",
  "wasm-bindgen",
  "web-sys",
 ]
@@ -2394,15 +2375,6 @@ version = "2.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "3e75f6a532d0fd9f7f13144f392b6ad56a32696bfcd9c78f797f16bbb6f072d6"
 
-[[package]]
-name = "rustc_version"
-version = "0.2.3"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "138e3e0acb6c9fb258b19b67cb8abd63c00679d2851805ea151465464fe9030a"
-dependencies = [
- "semver 0.9.0",
-]
-
 [[package]]
 name = "rustc_version"
 version = "0.3.3"
@@ -2524,22 +2496,13 @@ dependencies = [
  "libc",
 ]
 
-[[package]]
-name = "semver"
-version = "0.9.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1d7eb9ef2c18661902cc47e535f9bc51b78acd254da71d375c2f6720d9a40403"
-dependencies = [
- "semver-parser 0.7.0",
-]
-
 [[package]]
 name = "semver"
 version = "0.11.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "f301af10236f6df4160f7c3f04eec6dbc70ace82d23326abad5edee88801c6b6"
 dependencies = [
- "semver-parser 0.10.2",
+ "semver-parser",
 ]
 
 [[package]]
@@ -2551,12 +2514,6 @@ dependencies = [
  "serde",
 ]
 
-[[package]]
-name = "semver-parser"
-version = "0.7.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "388a1df253eca08550bef6c72392cfe7c30914bf41df5269b68cbd6ff8f570a3"
-
 [[package]]
 name = "semver-parser"
 version = "0.10.2"
@@ -2638,12 +2595,6 @@ dependencies = [
  "opaque-debug 0.3.0",
 ]
 
-[[package]]
-name = "sha1"
-version = "0.6.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2579985fda508104f7587689507983eadd6a6e84dd35d6d115361f530916fa0d"
-
 [[package]]
 name = "sha2"
 version = "0.8.2"
@@ -2765,70 +2716,12 @@ dependencies = [
  "der",
 ]
 
-[[package]]
-name = "standback"
-version = "0.2.17"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e113fb6f3de07a243d434a56ec6f186dfd51cb08448239fe7bcae73f87ff28ff"
-dependencies = [
- "version_check",
-]
-
 [[package]]
 name = "static_assertions"
 version = "1.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "a2eb9349b6444b326872e140eb1cf5e7c522154d69e7a0ffb0fb81c06b37543f"
 
-[[package]]
-name = "stdweb"
-version = "0.4.20"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d022496b16281348b52d0e30ae99e01a73d737b2f45d38fed4edf79f9325a1d5"
-dependencies = [
- "discard",
- "rustc_version 0.2.3",
- "stdweb-derive",
- "stdweb-internal-macros",
- "stdweb-internal-runtime",
- "wasm-bindgen",
-]
-
-[[package]]
-name = "stdweb-derive"
-version = "0.5.3"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c87a60a40fccc84bef0652345bbbbbe20a605bf5d0ce81719fc476f5c03b50ef"
-dependencies = [
- "proc-macro2",
- "quote",
- "serde",
- "serde_derive",
- "syn",
-]
-
-[[package]]
-name = "stdweb-internal-macros"
-version = "0.2.9"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "58fa5ff6ad0d98d1ffa8cb115892b6e69d67799f6763e162a1c9db421dc22e11"
-dependencies = [
- "base-x",
- "proc-macro2",
- "quote",
- "serde",
- "serde_derive",
- "serde_json",
- "sha1",
- "syn",
-]
-
-[[package]]
-name = "stdweb-internal-runtime"
-version = "0.1.5"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "213701ba3370744dcd1a12960caa4843b3d68b4d1c0a5d575e0d65b2ee9d16c0"
-
 [[package]]
 name = "subtle"
 version = "2.4.1"
@@ -2917,44 +2810,6 @@ dependencies = [
  "winapi",
 ]
 
-[[package]]
-name = "time"
-version = "0.2.27"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4752a97f8eebd6854ff91f1c1824cd6160626ac4bd44287f7f4ea2035a02a242"
-dependencies = [
- "const_fn",
- "libc",
- "standback",
- "stdweb",
- "time-macros",
- "version_check",
- "winapi",
-]
-
-[[package]]
-name = "time-macros"
-version = "0.1.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "957e9c6e26f12cb6d0dd7fc776bb67a706312e7299aed74c8dd5b17ebb27e2f1"
-dependencies = [
- "proc-macro-hack",
- "time-macros-impl",
-]
-
-[[package]]
-name = "time-macros-impl"
-version = "0.1.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "fd3c141a1b43194f3f56a1411225df8646c55781d5f26db825b3d98507eb482f"
-dependencies = [
- "proc-macro-hack",
- "proc-macro2",
- "quote",
- "standback",
- "syn",
-]
-
 [[package]]
 name = "tiny-keccak"
 version = "2.0.2"
diff --git a/ethers-middleware/Cargo.toml b/ethers-middleware/Cargo.toml
index b1d4dcf5..c66f32d0 100644
--- a/ethers-middleware/Cargo.toml
+++ b/ethers-middleware/Cargo.toml
@@ -32,7 +32,7 @@ reqwest = { version = "0.11.5", default-features = false, features = ["json", "r
 url = { version = "2.2.2", default-features = false }
 
 serde_json = { version = "1.0.64", default-features = false }
-instant = {version = "0.1.11", features = ["now"] }
+instant = {version = "0.1.12", features = ["now"] }
 
 [target.'cfg(not(target_arch = "wasm32"))'.dependencies]
 tokio = { version = "1.5" }