diff --git a/Cargo.lock b/Cargo.lock
index 5e000470..569d5b86 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -175,7 +175,7 @@ version = "0.5.0"
 dependencies = [
  "bridge-contracts 0.5.0",
  "error-chain 0.12.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "ethabi 9.0.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "ethabi 11.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "ethereum-types 0.8.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "futures 0.1.29 (registry+https://github.com/rust-lang/crates.io-index)",
  "jsonrpc-core 14.0.5 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -198,7 +198,7 @@ dependencies = [
 name = "bridge-contracts"
 version = "0.5.0"
 dependencies = [
- "ethabi 9.0.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "ethabi 11.0.0 (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)",
  "solc 0.1.0 (git+https://github.com/paritytech/rust_solc)",
@@ -424,6 +424,19 @@ dependencies = [
  "tiny-keccak 1.5.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "ethabi"
+version = "11.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "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_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)",
+ "uint 0.8.2 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "ethabi-contract"
 version = "9.0.0"
@@ -476,7 +489,7 @@ dependencies = [
  "impl-rlp 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "impl-serde 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "primitive-types 0.6.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "uint 0.8.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "uint 0.8.2 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -768,7 +781,7 @@ version = "0.1.0"
 dependencies = [
  "bridge 0.5.0",
  "bridge-contracts 0.5.0",
- "ethabi 9.0.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "ethabi 11.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "ethereum-types 0.8.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "futures 0.1.29 (registry+https://github.com/rust-lang/crates.io-index)",
  "jsonrpc-core 14.0.5 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -1166,7 +1179,7 @@ dependencies = [
  "impl-codec 0.4.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "impl-rlp 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "impl-serde 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "uint 0.8.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "uint 0.8.2 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -1600,6 +1613,11 @@ name = "static_assertions"
 version = "0.2.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
+[[package]]
+name = "static_assertions"
+version = "1.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
 [[package]]
 name = "stream-cipher"
 version = "0.3.2"
@@ -1979,12 +1997,13 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "uint"
-version = "0.8.1"
+version = "0.8.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "byteorder 1.3.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "crunchy 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "rustc-hex 2.0.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "static_assertions 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -2250,6 +2269,7 @@ 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 11.0.0 (registry+https://github.com/rust-lang/crates.io-index)" = "97652a7d1f2504d6c885c87e242a06ccef5bd3054093d3fb742d8fb64806231a"
 "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"
@@ -2378,6 +2398,7 @@ dependencies = [
 "checksum smallvec 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)" = "4ecf3b85f68e8abaa7555aa5abdb1153079387e60b718283d732f03897fcfc86"
 "checksum solc 0.1.0 (git+https://github.com/paritytech/rust_solc)" = "<none>"
 "checksum static_assertions 0.2.5 (registry+https://github.com/rust-lang/crates.io-index)" = "c19be23126415861cb3a23e501d34a708f7f9b2183c5252d690941c2e69199d5"
+"checksum static_assertions 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)" = "a2eb9349b6444b326872e140eb1cf5e7c522154d69e7a0ffb0fb81c06b37543f"
 "checksum stream-cipher 0.3.2 (registry+https://github.com/rust-lang/crates.io-index)" = "8131256a5896cabcf5eb04f4d6dacbe1aefda854b0d9896e09cb58829ec5638c"
 "checksum string 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)" = "d24114bfcceb867ca7f71a0d3fe45d45619ec47a6fbfa98cb14e14250bfa5d6d"
 "checksum strsim 0.9.2 (registry+https://github.com/rust-lang/crates.io-index)" = "032c03039aae92b350aad2e3779c352e104d919cb192ba2fabbd7b831ce4f0f6"
@@ -2415,7 +2436,7 @@ dependencies = [
 "checksum try-lock 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)" = "e604eb7b43c06650e854be16a2a03155743d3752dd1c943f6829e26b7a36e382"
 "checksum typeable 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)" = "1410f6f91f21d1612654e7cc69193b0334f909dcf2c790c4826254fbb86f8887"
 "checksum typenum 1.11.2 (registry+https://github.com/rust-lang/crates.io-index)" = "6d2783fe2d6b8c1101136184eb41be8b1ad379e4657050b8aaff0c79ee7575f9"
-"checksum uint 0.8.1 (registry+https://github.com/rust-lang/crates.io-index)" = "f8f0f47ed099f0db671ce82c66548c5de012e3c0cba3963514d1db15c7588701"
+"checksum uint 0.8.2 (registry+https://github.com/rust-lang/crates.io-index)" = "e75a4cdd7b87b28840dba13c483b9a88ee6bbf16ba5c951ee1ecfcf723078e0d"
 "checksum unicase 1.4.2 (registry+https://github.com/rust-lang/crates.io-index)" = "7f4765f83163b74f957c797ad9253caf97f103fb064d3999aea9568d09fc8a33"
 "checksum unicode-bidi 0.3.4 (registry+https://github.com/rust-lang/crates.io-index)" = "49f2bd0c6468a8230e1db229cff8029217cf623c767ea5d60bfbd42729ea54d5"
 "checksum unicode-normalization 0.1.8 (registry+https://github.com/rust-lang/crates.io-index)" = "141339a08b982d942be2ca06ff8b076563cbe223d1befd5450716790d44e2426"
diff --git a/bridge/Cargo.toml b/bridge/Cargo.toml
index f764179d..d1fc64f7 100644
--- a/bridge/Cargo.toml
+++ b/bridge/Cargo.toml
@@ -14,7 +14,7 @@ tokio-timer = "0.1"
 toml = "0.5.5"
 web3 = { git = "https://github.com/tomusdrw/rust-web3" }
 error-chain = "0.12"
-ethabi = "9.0"
+ethabi = "11.0"
 rustc-hex = "2.0"
 log = "0.4"
 ethereum-types = "0.8"
diff --git a/contracts/Cargo.toml b/contracts/Cargo.toml
index 771955e6..5645cdd0 100644
--- a/contracts/Cargo.toml
+++ b/contracts/Cargo.toml
@@ -4,7 +4,7 @@ version = "0.5.0"
 authors = ["debris <marek.kotewicz@gmail.com>", "snd <kruemaxi@gmail.com>"]
 
 [dependencies]
-ethabi = "9.0"
+ethabi = "11.0"
 ethabi-derive = "9.0"
 ethabi-contract = "9.0"
 
diff --git a/integration-tests/Cargo.toml b/integration-tests/Cargo.toml
index 2049e05e..de6bff5f 100644
--- a/integration-tests/Cargo.toml
+++ b/integration-tests/Cargo.toml
@@ -6,7 +6,7 @@ authors = ["debris <marek.kotewicz@gmail.com>", "snd <kruemaxi@gmail.com>"]
 [dependencies]
 bridge = { path = "../bridge" }
 bridge-contracts = { path = "../contracts", features = ["integration-tests"] }
-ethabi = "9.0"
+ethabi = "11.0"
 ethereum-types = "0.8"
 futures = "0.1"
 jsonrpc-core = "14.0"