diff --git a/Cargo.lock b/Cargo.lock
index 1c951811..87431443 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -198,13 +198,11 @@ dependencies = [
  "async-trait",
  "ethereum-types",
  "failure",
- "futures",
  "rand 0.5.6",
  "reqwest",
  "rlp",
  "rustc-hex",
  "secp256k1",
- "secrecy",
  "serde",
  "serde_json",
  "solc",
@@ -277,21 +275,6 @@ version = "0.3.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "3dcaa9ae7725d12cdb85b3ad99a434db70b468c09ded17e012d86b5c1010f7a7"
 
-[[package]]
-name = "futures"
-version = "0.3.5"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1e05b85ec287aac0dc34db7d4a569323df697f9c55b99b15d6b4ef8cde49f613"
-dependencies = [
- "futures-channel",
- "futures-core",
- "futures-executor",
- "futures-io",
- "futures-sink",
- "futures-task",
- "futures-util",
-]
-
 [[package]]
 name = "futures-channel"
 version = "0.3.5"
@@ -299,7 +282,6 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "f366ad74c28cca6ba456d95e6422883cfb4b252a83bed929c83abfdbbf2967d5"
 dependencies = [
  "futures-core",
- "futures-sink",
 ]
 
 [[package]]
@@ -308,35 +290,6 @@ version = "0.3.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "59f5fff90fd5d971f936ad674802482ba441b6f09ba5e15fd8b39145582ca399"
 
-[[package]]
-name = "futures-executor"
-version = "0.3.5"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "10d6bb888be1153d3abeb9006b11b02cf5e9b209fda28693c31ae1e4e012e314"
-dependencies = [
- "futures-core",
- "futures-task",
- "futures-util",
-]
-
-[[package]]
-name = "futures-io"
-version = "0.3.5"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "de27142b013a8e869c14957e6d2edeef89e97c289e69d042ee3a49acd8b51789"
-
-[[package]]
-name = "futures-macro"
-version = "0.3.5"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d0b5a30a4328ab5473878237c447333c093297bded83a4983d10f4deea240d39"
-dependencies = [
- "proc-macro-hack",
- "proc-macro2",
- "quote",
- "syn",
-]
-
 [[package]]
 name = "futures-sink"
 version = "0.3.5"
@@ -348,9 +301,6 @@ name = "futures-task"
 version = "0.3.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "bdb66b5f09e22019b1ab0830f7785bcea8e7a42148683f99214f73f8ec21a626"
-dependencies = [
- "once_cell",
-]
 
 [[package]]
 name = "futures-util"
@@ -358,18 +308,10 @@ version = "0.3.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "8764574ff08b701a084482c3c7031349104b07ac897393010494beaa18ce32c6"
 dependencies = [
- "futures-channel",
  "futures-core",
- "futures-io",
- "futures-macro",
- "futures-sink",
  "futures-task",
- "memchr",
  "pin-project",
  "pin-utils",
- "proc-macro-hack",
- "proc-macro-nested",
- "slab",
 ]
 
 [[package]]
@@ -637,12 +579,6 @@ version = "0.19.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "9cbca9424c482ee628fa549d9c812e2cd22f1180b9222c9200fdfa6eb31aecb2"
 
-[[package]]
-name = "once_cell"
-version = "1.4.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0b631f7e854af39a1739f401cf34a8a013dfe09eac4fa4dba91e9768bd28168d"
-
 [[package]]
 name = "parity-scale-codec"
 version = "1.3.0"
@@ -712,18 +648,6 @@ dependencies = [
  "uint",
 ]
 
-[[package]]
-name = "proc-macro-hack"
-version = "0.5.15"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0d659fe7c6d27f25e9d80a1a094c223f5246f6a6596453e09d7229bf42750b63"
-
-[[package]]
-name = "proc-macro-nested"
-version = "0.1.4"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8e946095f9d3ed29ec38de908c22f95d9ac008e424c7bcae54c75a79c527c694"
-
 [[package]]
 name = "proc-macro2"
 version = "1.0.15"
@@ -990,15 +914,6 @@ dependencies = [
  "cc",
 ]
 
-[[package]]
-name = "secrecy"
-version = "0.6.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9182278ed645df3477a9c27bfee0621c621aa16f6972635f7f795dae3d81070f"
-dependencies = [
- "zeroize",
-]
-
 [[package]]
 name = "serde"
 version = "1.0.110"
diff --git a/Cargo.toml b/Cargo.toml
index 4bffcb6e..9291dde2 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -7,18 +7,16 @@ edition = "2018"
 [dependencies]
 ethereum-types = { version = "0.9.2", default-features = false, features = ["serialize"] }
 url = { version = "2.1.1", default-features = false }
-async-trait = "0.1.31"
+async-trait = { version = "0.1.31", default-features = false }
 reqwest = { version = "0.10.4", default-features = false, features = ["json"] }
 serde = { version = "1.0.110", default-features = false, features = ["derive"] }
-serde_json = "1.0.53"
-thiserror = "1.0.19"
-rustc-hex = "2.1.0"
-rand = "0.5.1" # this should be the same rand crate version as the one in secp
-secp256k1 = { version = "0.17.2", features = ["recovery", "rand"] }
-secrecy = "0.6.0"
-zeroize = "1.1.0"
-tiny-keccak = "2.0.2"
-futures = "0.3.5"
+serde_json = { version = "1.0.53", default-features = false }
+thiserror = { version = "1.0.19", default-features = false }
+rustc-hex = { version = "2.1.0", default-features = false }
+rand = { version = "0.5.1", default-features = false } # this should be the same rand crate version as the one in secp
+secp256k1 = { version = "0.17.2", default-features = false, features = ["std", "recovery", "rand"] }
+zeroize = { version = "1.1.0", default-features = false }
+tiny-keccak = { version = "2.0.2", default-features = false }
 
 solc = { git = "https://github.com/paritytech/rust_solc "}
 rlp = "0.4.5"
@@ -26,4 +24,4 @@ rlp = "0.4.5"
 [dev-dependencies]
 tokio = { version = "0.2.21", features = ["macros"] }
 failure = "0.1.8"
-
+rand = { version = "0.5.1" }
diff --git a/src/lib.rs b/src/lib.rs
index 88e66770..549fdd38 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -19,6 +19,7 @@ pub mod providers;
 pub use providers::HttpProvider;
 
 pub mod signers;
+
 pub use signers::{AnyWallet, MainnetWallet, Signer};
 
 /// Ethereum related datatypes