diff --git a/Cargo.lock b/Cargo.lock
index 646bc9064..c0aae6664 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -248,7 +248,7 @@ name = "common-types"
 version = "0.1.0"
 dependencies = [
  "ethcore-bytes 0.1.0",
- "ethereum-types 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "ethereum-types 0.3.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "ethjson 0.1.0",
  "heapsize 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "keccak-hash 0.1.2",
@@ -385,7 +385,7 @@ name = "dir"
 version = "0.1.0"
 dependencies = [
  "app_dirs 1.2.1 (git+https://github.com/paritytech/app-dirs-rs)",
- "ethereum-types 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "ethereum-types 0.3.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "journaldb 0.1.0",
 ]
 
@@ -457,7 +457,7 @@ version = "5.1.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "error-chain 0.11.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "ethereum-types 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "ethereum-types 0.3.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "rustc-hex 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde 1.0.37 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_derive 1.0.37 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -530,7 +530,7 @@ dependencies = [
  "ethcore-miner 1.12.0",
  "ethcore-stratum 1.12.0",
  "ethcore-transaction 0.1.0",
- "ethereum-types 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "ethereum-types 0.3.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "ethjson 0.1.0",
  "ethkey 0.3.0",
  "ethstore 0.2.0",
@@ -591,7 +591,7 @@ version = "0.1.0"
 name = "ethcore-crypto"
 version = "0.1.0"
 dependencies = [
- "ethereum-types 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "ethereum-types 0.3.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "quick-error 1.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "ring 0.12.1 (git+https://github.com/paritytech/ring)",
  "rust-crypto 0.2.36 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -628,7 +628,7 @@ dependencies = [
  "ethcore-io 1.12.0",
  "ethcore-network 1.12.0",
  "ethcore-transaction 0.1.0",
- "ethereum-types 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "ethereum-types 0.3.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "futures 0.1.21 (registry+https://github.com/rust-lang/crates.io-index)",
  "hashdb 0.1.1",
  "heapsize 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -678,7 +678,7 @@ dependencies = [
  "error-chain 0.11.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "ethash 1.12.0",
  "ethcore-transaction 0.1.0",
- "ethereum-types 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "ethereum-types 0.3.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "ethkey 0.3.0",
  "fetch 0.1.0",
  "futures 0.1.21 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -706,7 +706,7 @@ dependencies = [
  "error-chain 0.11.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "ethcore-crypto 0.1.0",
  "ethcore-io 1.12.0",
- "ethereum-types 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "ethereum-types 0.3.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "ethkey 0.3.0",
  "ipnetwork 0.12.7 (registry+https://github.com/rust-lang/crates.io-index)",
  "rlp 0.2.1",
@@ -726,7 +726,7 @@ dependencies = [
  "ethcore-io 1.12.0",
  "ethcore-logger 1.12.0",
  "ethcore-network 1.12.0",
- "ethereum-types 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "ethereum-types 0.3.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "ethkey 0.3.0",
  "igd 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "ipnetwork 0.12.7 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -764,7 +764,7 @@ dependencies = [
  "ethcore-logger 1.12.0",
  "ethcore-miner 1.12.0",
  "ethcore-transaction 0.1.0",
- "ethereum-types 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "ethereum-types 0.3.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "ethjson 0.1.0",
  "ethkey 0.3.0",
  "fetch 0.1.0",
@@ -798,7 +798,7 @@ dependencies = [
  "ethcore-logger 1.12.0",
  "ethcore-sync 1.12.0",
  "ethcore-transaction 0.1.0",
- "ethereum-types 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "ethereum-types 0.3.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "ethkey 0.3.0",
  "futures 0.1.21 (registry+https://github.com/rust-lang/crates.io-index)",
  "futures-cpupool 0.1.8 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -847,7 +847,7 @@ version = "1.12.0"
 dependencies = [
  "env_logger 0.4.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "ethcore-logger 1.12.0",
- "ethereum-types 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "ethereum-types 0.3.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "jsonrpc-core 8.0.1 (git+https://github.com/paritytech/jsonrpc.git?branch=parity-1.11)",
  "jsonrpc-macros 8.0.0 (git+https://github.com/paritytech/jsonrpc.git?branch=parity-1.11)",
  "jsonrpc-tcp-server 8.0.0 (git+https://github.com/paritytech/jsonrpc.git?branch=parity-1.11)",
@@ -871,7 +871,7 @@ dependencies = [
  "ethcore-network-devp2p 1.12.0",
  "ethcore-private-tx 1.0.0",
  "ethcore-transaction 0.1.0",
- "ethereum-types 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "ethereum-types 0.3.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "ethkey 0.3.0",
  "heapsize 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "ipnetwork 0.12.7 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -895,7 +895,7 @@ dependencies = [
 name = "ethcore-transaction"
 version = "0.1.0"
 dependencies = [
- "ethereum-types 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "ethereum-types 0.3.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "ethjson 0.1.0",
  "ethkey 0.3.0",
  "evm 0.1.0",
@@ -908,7 +908,7 @@ dependencies = [
 
 [[package]]
 name = "ethereum-types"
-version = "0.3.1"
+version = "0.3.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "crunchy 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -917,7 +917,7 @@ dependencies = [
  "fixed-hash 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "rustc_version 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde 1.0.37 (registry+https://github.com/rust-lang/crates.io-index)",
- "uint 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "uint 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -932,7 +932,7 @@ dependencies = [
 name = "ethjson"
 version = "0.1.0"
 dependencies = [
- "ethereum-types 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "ethereum-types 0.3.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "rustc-hex 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde 1.0.37 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_derive 1.0.37 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -947,7 +947,7 @@ dependencies = [
  "edit-distance 2.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "eth-secp256k1 0.5.7 (git+https://github.com/paritytech/rust-secp256k1)",
  "ethcore-crypto 0.1.0",
- "ethereum-types 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "ethereum-types 0.3.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "lazy_static 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "log 0.3.9 (registry+https://github.com/rust-lang/crates.io-index)",
  "mem 0.1.0",
@@ -979,7 +979,7 @@ version = "0.2.0"
 dependencies = [
  "dir 0.1.0",
  "ethcore-crypto 0.1.0",
- "ethereum-types 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "ethereum-types 0.3.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "ethkey 0.3.0",
  "itertools 0.5.10 (registry+https://github.com/rust-lang/crates.io-index)",
  "libc 0.2.36 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -1019,7 +1019,7 @@ name = "evm"
 version = "0.1.0"
 dependencies = [
  "bit-set 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "ethereum-types 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "ethereum-types 0.3.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "heapsize 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "keccak-hash 0.1.2",
  "lazy_static 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -1038,7 +1038,7 @@ dependencies = [
  "ethcore 1.12.0",
  "ethcore-bytes 0.1.0",
  "ethcore-transaction 0.1.0",
- "ethereum-types 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "ethereum-types 0.3.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "ethjson 0.1.0",
  "evm 0.1.0",
  "panic_hook 0.1.0",
@@ -1178,7 +1178,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 name = "hardware-wallet"
 version = "1.12.0"
 dependencies = [
- "ethereum-types 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "ethereum-types 0.3.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "ethkey 0.3.0",
  "hidapi 0.3.1 (git+https://github.com/paritytech/hidapi-rs)",
  "libusb 0.3.0 (git+https://github.com/paritytech/libusb-rs)",
@@ -1194,7 +1194,7 @@ name = "hashdb"
 version = "0.1.1"
 dependencies = [
  "elastic-array 0.10.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "ethereum-types 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "ethereum-types 0.3.2 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -1342,7 +1342,7 @@ version = "0.1.0"
 dependencies = [
  "ethcore-bytes 0.1.0",
  "ethcore-logger 1.12.0",
- "ethereum-types 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "ethereum-types 0.3.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "hashdb 0.1.1",
  "heapsize 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "keccak-hash 0.1.2",
@@ -1456,7 +1456,7 @@ dependencies = [
 name = "keccak-hash"
 version = "0.1.2"
 dependencies = [
- "ethereum-types 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "ethereum-types 0.3.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "tempdir 0.3.5 (registry+https://github.com/rust-lang/crates.io-index)",
  "tiny-keccak 1.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
@@ -1492,7 +1492,7 @@ name = "kvdb-rocksdb"
 version = "0.1.0"
 dependencies = [
  "elastic-array 0.10.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "ethereum-types 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "ethereum-types 0.3.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "interleaved-ordered 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "kvdb 0.1.0",
  "log 0.3.9 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -1644,7 +1644,7 @@ name = "memorydb"
 version = "0.1.1"
 dependencies = [
  "elastic-array 0.10.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "ethereum-types 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "ethereum-types 0.3.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "hashdb 0.1.1",
  "heapsize 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "keccak-hash 0.1.2",
@@ -1807,7 +1807,7 @@ dependencies = [
  "ethcore-io 1.12.0",
  "ethcore-network 1.12.0",
  "ethcore-network-devp2p 1.12.0",
- "ethereum-types 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "ethereum-types 0.3.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "kvdb-memorydb 0.1.0",
  "log 0.3.9 (registry+https://github.com/rust-lang/crates.io-index)",
  "lru-cache 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -1866,7 +1866,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "num-integer 0.1.36 (registry+https://github.com/rust-lang/crates.io-index)",
  "num-traits 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "rand 0.3.20 (registry+https://github.com/rust-lang/crates.io-index)",
+ "rand 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "rustc-serialize 0.3.24 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -1978,7 +1978,7 @@ dependencies = [
  "ethcore-service 0.1.0",
  "ethcore-sync 1.12.0",
  "ethcore-transaction 0.1.0",
- "ethereum-types 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "ethereum-types 0.3.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "ethkey 0.3.0",
  "fake-fetch 0.0.1",
  "fdlimit 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -2044,7 +2044,7 @@ dependencies = [
  "env_logger 0.4.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "ethcore-bytes 0.1.0",
  "ethcore-devtools 1.12.0",
- "ethereum-types 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "ethereum-types 0.3.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "fetch 0.1.0",
  "futures 0.1.21 (registry+https://github.com/rust-lang/crates.io-index)",
  "futures-cpupool 0.1.8 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -2109,7 +2109,7 @@ dependencies = [
  "ethabi-contract 5.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "ethabi-derive 5.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "ethcore-bytes 0.1.0",
- "ethereum-types 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "ethereum-types 0.3.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "fake-fetch 0.0.1",
  "fetch 0.1.0",
  "futures 0.1.21 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -2133,7 +2133,7 @@ dependencies = [
  "cid 0.2.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "ethcore 1.12.0",
  "ethcore-bytes 0.1.0",
- "ethereum-types 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "ethereum-types 0.3.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "jsonrpc-core 8.0.1 (git+https://github.com/paritytech/jsonrpc.git?branch=parity-1.11)",
  "jsonrpc-http-server 8.0.0 (git+https://github.com/paritytech/jsonrpc.git?branch=parity-1.11)",
  "multihash 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -2162,7 +2162,7 @@ dependencies = [
 name = "parity-machine"
 version = "0.1.0"
 dependencies = [
- "ethereum-types 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "ethereum-types 0.3.2 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -2192,7 +2192,7 @@ dependencies = [
  "ethcore-private-tx 1.0.0",
  "ethcore-sync 1.12.0",
  "ethcore-transaction 0.1.0",
- "ethereum-types 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "ethereum-types 0.3.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "ethjson 0.1.0",
  "ethkey 0.3.0",
  "ethstore 0.2.0",
@@ -2331,7 +2331,7 @@ dependencies = [
  "ethcore 1.12.0",
  "ethcore-bytes 0.1.0",
  "ethcore-sync 1.12.0",
- "ethereum-types 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "ethereum-types 0.3.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "keccak-hash 0.1.2",
  "lazy_static 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "log 0.3.9 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -2376,7 +2376,7 @@ dependencies = [
  "byteorder 1.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "ethcore-crypto 0.1.0",
  "ethcore-network 1.12.0",
- "ethereum-types 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "ethereum-types 0.3.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "ethkey 0.3.0",
  "hex 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "jsonrpc-core 8.0.1 (git+https://github.com/paritytech/jsonrpc.git?branch=parity-1.11)",
@@ -2438,7 +2438,7 @@ dependencies = [
  "elastic-array 0.10.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "ethcore-bytes 0.1.0",
  "ethcore-logger 1.12.0",
- "ethereum-types 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "ethereum-types 0.3.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "hashdb 0.1.1",
  "keccak-hash 0.1.2",
  "log 0.3.9 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -2494,7 +2494,7 @@ name = "plain_hasher"
 version = "0.1.0"
 dependencies = [
  "crunchy 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)",
- "ethereum-types 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "ethereum-types 0.3.2 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -2593,7 +2593,7 @@ version = "0.1.0"
 dependencies = [
  "clap 2.29.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "ethcore-logger 1.12.0",
- "ethereum-types 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "ethereum-types 0.3.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "ethjson 0.1.0",
  "rustc-hex 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde 1.0.37 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -2766,7 +2766,7 @@ version = "0.2.1"
 dependencies = [
  "byteorder 1.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "elastic-array 0.10.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "ethereum-types 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "ethereum-types 0.3.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "rustc-hex 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -2974,7 +2974,7 @@ name = "shell32-sys"
 version = "0.1.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "winapi 0.2.8 (registry+https://github.com/rust-lang/crates.io-index)",
+ "winapi 0.3.4 (registry+https://github.com/rust-lang/crates.io-index)",
  "winapi-build 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -3444,7 +3444,7 @@ name = "transaction-pool"
 version = "1.12.0"
 dependencies = [
  "error-chain 0.11.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "ethereum-types 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "ethereum-types 0.3.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "log 0.3.9 (registry+https://github.com/rust-lang/crates.io-index)",
  "smallvec 0.4.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "trace-time 0.1.0",
@@ -3471,7 +3471,7 @@ name = "trie-standardmap"
 version = "0.1.0"
 dependencies = [
  "ethcore-bytes 0.1.0",
- "ethereum-types 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "ethereum-types 0.3.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "keccak-hash 0.1.2",
  "rlp 0.2.1",
 ]
@@ -3481,7 +3481,7 @@ name = "triehash"
 version = "0.1.0"
 dependencies = [
  "elastic-array 0.10.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "ethereum-types 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "ethereum-types 0.3.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "keccak-hash 0.1.2",
  "rlp 0.2.1",
  "trie-standardmap 0.1.0",
@@ -3489,7 +3489,7 @@ dependencies = [
 
 [[package]]
 name = "uint"
-version = "0.2.0"
+version = "0.2.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "byteorder 1.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -3596,7 +3596,7 @@ name = "util-error"
 version = "0.1.0"
 dependencies = [
  "error-chain 0.11.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "ethereum-types 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "ethereum-types 0.3.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "kvdb 0.1.0",
  "rlp 0.2.1",
  "rustc-hex 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -3628,7 +3628,7 @@ dependencies = [
  "byteorder 1.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "common-types 0.1.0",
  "ethcore-bytes 0.1.0",
- "ethereum-types 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "ethereum-types 0.3.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "ethjson 0.1.0",
  "keccak-hash 0.1.2",
  "log 0.3.9 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -3647,7 +3647,7 @@ version = "0.1.0"
 dependencies = [
  "byteorder 1.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "ethcore-logger 1.12.0",
- "ethereum-types 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "ethereum-types 0.3.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "libc 0.2.36 (registry+https://github.com/rust-lang/crates.io-index)",
  "log 0.3.9 (registry+https://github.com/rust-lang/crates.io-index)",
  "parity-wasm 0.27.5 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -3847,7 +3847,7 @@ dependencies = [
 "checksum ethabi-contract 5.1.0 (registry+https://github.com/rust-lang/crates.io-index)" = "210c9e21d164c15b6ef64fe601e0e12a3c84a031d5ef558e38463e53edbd22ed"
 "checksum ethabi-derive 5.1.2 (registry+https://github.com/rust-lang/crates.io-index)" = "d2bc7099baa147187aedaecd9fe04a6c0541c82bc43ff317cb6900fe2b983d74"
 "checksum ethbloom 0.5.0 (registry+https://github.com/rust-lang/crates.io-index)" = "1a93a43ce2e9f09071449da36bfa7a1b20b950ee344b6904ff23de493b03b386"
-"checksum ethereum-types 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)" = "3a3ae691a36ce5d25b433e63128ce5579f4a18457b6a9c849832b2c9e0fec92a"
+"checksum ethereum-types 0.3.2 (registry+https://github.com/rust-lang/crates.io-index)" = "9c48729b8aea8aedb12cf4cb2e5cef439fdfe2dda4a89e47eeebd15778ef53b6"
 "checksum ethereum-types-serialize 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)" = "4ac59a21a9ce98e188f3dace9eb67a6c4a3c67ec7fbc7218cb827852679dc002"
 "checksum fdlimit 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)" = "b1ee15a7050e5580b3712877157068ea713b245b080ff302ae2ca973cfcd9baa"
 "checksum fixed-hash 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)" = "b18d6fd718fb4396e7a9c93ac59ba7143501467ca7a143c145b5555a571d5576"
@@ -4045,7 +4045,7 @@ dependencies = [
 "checksum toml 0.4.5 (registry+https://github.com/rust-lang/crates.io-index)" = "a7540f4ffc193e0d3c94121edb19b055670d369f77d5804db11ae053a45b6e7e"
 "checksum transient-hashmap 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)" = "715254c8f0811be1a79ad3ea5e6fa3c8eddec2b03d7f5ba78cf093e56d79c24f"
 "checksum trezor-sys 1.0.0 (git+https://github.com/paritytech/trezor-sys)" = "<none>"
-"checksum uint 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)" = "6477b2716357758c176c36719023e1f9726974d762150e4fc0a9c8c75488c343"
+"checksum uint 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)" = "38051a96565903d81c9a9210ce11076b2218f3b352926baa1f5f6abbdfce8273"
 "checksum unicase 1.4.2 (registry+https://github.com/rust-lang/crates.io-index)" = "7f4765f83163b74f957c797ad9253caf97f103fb064d3999aea9568d09fc8a33"
 "checksum unicase 2.1.0 (registry+https://github.com/rust-lang/crates.io-index)" = "284b6d3db520d67fbe88fd778c21510d1b0ba4a551e5d0fbb023d33405f6de8a"
 "checksum unicode-bidi 0.3.4 (registry+https://github.com/rust-lang/crates.io-index)" = "49f2bd0c6468a8230e1db229cff8029217cf623c767ea5d60bfbd42729ea54d5"
diff --git a/rpc/Cargo.toml b/rpc/Cargo.toml
index 731544a55..8fdb9ed57 100644
--- a/rpc/Cargo.toml
+++ b/rpc/Cargo.toml
@@ -47,7 +47,7 @@ ethcore-miner = { path = "../miner" }
 ethcore-private-tx = { path = "../ethcore/private-tx" }
 ethcore-sync = { path = "../ethcore/sync" }
 ethcore-transaction = { path = "../ethcore/transaction" }
-ethereum-types = "0.3"
+ethereum-types = "0.3.2"
 
 ethjson = { path = "../json" }
 ethkey = { path = "../ethkey" }
diff --git a/rpc/src/v1/types/uint.rs b/rpc/src/v1/types/uint.rs
index e887322db..4e2a189a6 100644
--- a/rpc/src/v1/types/uint.rs
+++ b/rpc/src/v1/types/uint.rs
@@ -55,7 +55,7 @@ macro_rules! impl_uint {
 
 		impl fmt::LowerHex for $name {
 			fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
-				write!(f, "{:#x}", self.0)
+				fmt::LowerHex::fmt(&self.0, f)
 			}
 		}
 
@@ -102,19 +102,19 @@ impl_uint!(U64, u64, 1);
 
 impl serde::Serialize for U128 {
 	fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error> where S: serde::Serializer {
-		serializer.serialize_str(&format!("0x{:x}", self.0))
+		serializer.serialize_str(&format!("{:#x}", self))
 	}
 }
 
 impl serde::Serialize for U256 {
 	fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error> where S: serde::Serializer {
-		serializer.serialize_str(&format!("0x{:x}", self.0))
+		serializer.serialize_str(&format!("{:#x}", self))
 	}
 }
 
 impl serde::Serialize for U64 {
 	fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error> where S: serde::Serializer {
-		serializer.serialize_str(&format!("0x{:x}", self.0))
+		serializer.serialize_str(&format!("{:#x}", self))
 	}
 }