diff --git a/Cargo.lock b/Cargo.lock
index 5e000470..6bd793ff 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -200,7 +200,7 @@ version = "0.5.0"
 dependencies = [
  "ethabi 9.0.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "ethabi-contract 9.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "ethabi-derive 9.0.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "ethabi-derive 10.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "solc 0.1.0 (git+https://github.com/paritytech/rust_solc)",
 ]
 
@@ -424,6 +424,20 @@ dependencies = [
  "tiny-keccak 1.5.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "ethabi"
+version = "10.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "error-chain 0.12.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "ethereum-types 0.8.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "rustc-hex 2.0.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 1.0.103 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde_derive 1.0.103 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde_json 1.0.44 (registry+https://github.com/rust-lang/crates.io-index)",
+ "tiny-keccak 1.5.0 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "ethabi-contract"
 version = "9.0.0"
@@ -431,10 +445,10 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "ethabi-derive"
-version = "9.0.1"
+version = "10.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "ethabi 9.0.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "ethabi 10.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "heck 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "proc-macro2 0.4.30 (registry+https://github.com/rust-lang/crates.io-index)",
  "quote 0.6.13 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -2250,9 +2264,10 @@ dependencies = [
 "checksum env_logger 0.6.2 (registry+https://github.com/rust-lang/crates.io-index)" = "aafcde04e90a5226a6443b7aabdb016ba2f8307c847d524724bd9b346dd1a2d3"
 "checksum env_logger 0.7.1 (registry+https://github.com/rust-lang/crates.io-index)" = "44533bbbb3bb3c1fa17d9f2e4e38bbbaf8396ba82193c4cb1b6445d711445d36"
 "checksum error-chain 0.12.1 (registry+https://github.com/rust-lang/crates.io-index)" = "3ab49e9dcb602294bc42f9a7dfc9bc6e936fca4418ea300dbfb84fe16de0b7d9"
+"checksum ethabi 10.0.0 (registry+https://github.com/rust-lang/crates.io-index)" = "aafca66556d91290b75eef4254a21157635b5e6c378f684a904742238d0a601c"
 "checksum ethabi 9.0.1 (registry+https://github.com/rust-lang/crates.io-index)" = "965126c64662832991f5a748893577630b558e47fa94e7f35aefcd20d737cef7"
 "checksum ethabi-contract 9.0.0 (registry+https://github.com/rust-lang/crates.io-index)" = "cf407dce0290374bfbb1528493bc14320e663f75856b73a5b76262d8e2cec3c9"
-"checksum ethabi-derive 9.0.1 (registry+https://github.com/rust-lang/crates.io-index)" = "bd0753d4f9e1dba99450da5f2400b20527702ae8ce0309a5f7c239d305539884"
+"checksum ethabi-derive 10.0.0 (registry+https://github.com/rust-lang/crates.io-index)" = "be4673282459d684e7cccebed6b87773ad2ce3901727da7c3fd67b2b4d693aca"
 "checksum ethbloom 0.8.0 (registry+https://github.com/rust-lang/crates.io-index)" = "ee6ee7065ba6a1597cff1e0598cfc3b0b41b5f65ccdf605560a296e7d94e93bf"
 "checksum ethereum-transaction 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)" = "6689c8377635a1878c1216b8cb5496a36c3009e85425f55e4a562421b35df38d"
 "checksum ethereum-types 0.8.0 (registry+https://github.com/rust-lang/crates.io-index)" = "ba744248e3553a393143d5ebb68939fc3a4ec0c22a269682535f5ffe7fed728c"
diff --git a/contracts/Cargo.toml b/contracts/Cargo.toml
index 771955e6..0e93758f 100644
--- a/contracts/Cargo.toml
+++ b/contracts/Cargo.toml
@@ -5,7 +5,7 @@ authors = ["debris <marek.kotewicz@gmail.com>", "snd <kruemaxi@gmail.com>"]
 
 [dependencies]
 ethabi = "9.0"
-ethabi-derive = "9.0"
+ethabi-derive = "10.0"
 ethabi-contract = "9.0"
 
 [build-dependencies]