diff --git a/Cargo.lock b/Cargo.lock
index 1a63bccdc..9d4d7a458 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -201,7 +201,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "bytes"
-version = "0.4.1"
+version = "0.4.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "byteorder 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -1038,7 +1038,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 [[package]]
 name = "jsonrpc-core"
 version = "7.0.0"
-source = "git+https://github.com/paritytech/jsonrpc.git?branch=parity-1.7#306e200900e12313837733aa0a01966ff20610b1"
+source = "git+https://github.com/paritytech/jsonrpc.git?branch=parity-1.7#8ed20d6e094e88f707045fca2d0959f46bfd23f9"
 dependencies = [
  "futures 0.1.11 (registry+https://github.com/rust-lang/crates.io-index)",
  "log 0.3.7 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -1050,7 +1050,7 @@ dependencies = [
 [[package]]
 name = "jsonrpc-http-server"
 version = "7.0.0"
-source = "git+https://github.com/paritytech/jsonrpc.git?branch=parity-1.7#306e200900e12313837733aa0a01966ff20610b1"
+source = "git+https://github.com/paritytech/jsonrpc.git?branch=parity-1.7#8ed20d6e094e88f707045fca2d0959f46bfd23f9"
 dependencies = [
  "hyper 0.10.0-a.0 (git+https://github.com/paritytech/hyper)",
  "jsonrpc-core 7.0.0 (git+https://github.com/paritytech/jsonrpc.git?branch=parity-1.7)",
@@ -1063,9 +1063,9 @@ dependencies = [
 [[package]]
 name = "jsonrpc-ipc-server"
 version = "7.0.0"
-source = "git+https://github.com/paritytech/jsonrpc.git?branch=parity-1.7#306e200900e12313837733aa0a01966ff20610b1"
+source = "git+https://github.com/paritytech/jsonrpc.git?branch=parity-1.7#8ed20d6e094e88f707045fca2d0959f46bfd23f9"
 dependencies = [
- "bytes 0.4.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "bytes 0.4.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "jsonrpc-core 7.0.0 (git+https://github.com/paritytech/jsonrpc.git?branch=parity-1.7)",
  "jsonrpc-server-utils 7.0.0 (git+https://github.com/paritytech/jsonrpc.git?branch=parity-1.7)",
  "log 0.3.7 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -1076,7 +1076,7 @@ dependencies = [
 [[package]]
 name = "jsonrpc-macros"
 version = "7.0.0"
-source = "git+https://github.com/paritytech/jsonrpc.git?branch=parity-1.7#306e200900e12313837733aa0a01966ff20610b1"
+source = "git+https://github.com/paritytech/jsonrpc.git?branch=parity-1.7#8ed20d6e094e88f707045fca2d0959f46bfd23f9"
 dependencies = [
  "jsonrpc-core 7.0.0 (git+https://github.com/paritytech/jsonrpc.git?branch=parity-1.7)",
  "jsonrpc-pubsub 7.0.0 (git+https://github.com/paritytech/jsonrpc.git?branch=parity-1.7)",
@@ -1086,7 +1086,7 @@ dependencies = [
 [[package]]
 name = "jsonrpc-minihttp-server"
 version = "7.0.0"
-source = "git+https://github.com/paritytech/jsonrpc.git?branch=parity-1.7#306e200900e12313837733aa0a01966ff20610b1"
+source = "git+https://github.com/paritytech/jsonrpc.git?branch=parity-1.7#8ed20d6e094e88f707045fca2d0959f46bfd23f9"
 dependencies = [
  "jsonrpc-core 7.0.0 (git+https://github.com/paritytech/jsonrpc.git?branch=parity-1.7)",
  "jsonrpc-server-utils 7.0.0 (git+https://github.com/paritytech/jsonrpc.git?branch=parity-1.7)",
@@ -1100,7 +1100,7 @@ dependencies = [
 [[package]]
 name = "jsonrpc-pubsub"
 version = "7.0.0"
-source = "git+https://github.com/paritytech/jsonrpc.git?branch=parity-1.7#306e200900e12313837733aa0a01966ff20610b1"
+source = "git+https://github.com/paritytech/jsonrpc.git?branch=parity-1.7#8ed20d6e094e88f707045fca2d0959f46bfd23f9"
 dependencies = [
  "jsonrpc-core 7.0.0 (git+https://github.com/paritytech/jsonrpc.git?branch=parity-1.7)",
  "log 0.3.7 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -1110,7 +1110,7 @@ dependencies = [
 [[package]]
 name = "jsonrpc-server-utils"
 version = "7.0.0"
-source = "git+https://github.com/paritytech/jsonrpc.git?branch=parity-1.7#306e200900e12313837733aa0a01966ff20610b1"
+source = "git+https://github.com/paritytech/jsonrpc.git?branch=parity-1.7#8ed20d6e094e88f707045fca2d0959f46bfd23f9"
 dependencies = [
  "jsonrpc-core 7.0.0 (git+https://github.com/paritytech/jsonrpc.git?branch=parity-1.7)",
  "log 0.3.7 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -1121,9 +1121,9 @@ dependencies = [
 [[package]]
 name = "jsonrpc-tcp-server"
 version = "7.0.0"
-source = "git+https://github.com/paritytech/jsonrpc.git?branch=parity-1.7#306e200900e12313837733aa0a01966ff20610b1"
+source = "git+https://github.com/paritytech/jsonrpc.git?branch=parity-1.7#8ed20d6e094e88f707045fca2d0959f46bfd23f9"
 dependencies = [
- "bytes 0.4.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "bytes 0.4.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "jsonrpc-core 7.0.0 (git+https://github.com/paritytech/jsonrpc.git?branch=parity-1.7)",
  "jsonrpc-server-utils 7.0.0 (git+https://github.com/paritytech/jsonrpc.git?branch=parity-1.7)",
  "log 0.3.7 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -1135,7 +1135,7 @@ dependencies = [
 [[package]]
 name = "jsonrpc-ws-server"
 version = "7.0.0"
-source = "git+https://github.com/paritytech/jsonrpc.git?branch=parity-1.7#306e200900e12313837733aa0a01966ff20610b1"
+source = "git+https://github.com/paritytech/jsonrpc.git?branch=parity-1.7#8ed20d6e094e88f707045fca2d0959f46bfd23f9"
 dependencies = [
  "jsonrpc-core 7.0.0 (git+https://github.com/paritytech/jsonrpc.git?branch=parity-1.7)",
  "jsonrpc-server-utils 7.0.0 (git+https://github.com/paritytech/jsonrpc.git?branch=parity-1.7)",
@@ -1747,7 +1747,7 @@ name = "parity-tokio-ipc"
 version = "0.1.5"
 source = "git+https://github.com/nikvolf/parity-tokio-ipc#d6c5b3cfcc913a1b9cf0f0562a10b083ceb9fb7c"
 dependencies = [
- "bytes 0.4.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "bytes 0.4.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "futures 0.1.11 (registry+https://github.com/rust-lang/crates.io-index)",
  "log 0.3.7 (registry+https://github.com/rust-lang/crates.io-index)",
  "mio-named-pipes 0.1.4 (git+https://github.com/alexcrichton/mio-named-pipes)",
@@ -2466,7 +2466,7 @@ name = "tokio-core"
 version = "0.1.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "bytes 0.4.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "bytes 0.4.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "futures 0.1.11 (registry+https://github.com/rust-lang/crates.io-index)",
  "iovec 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "log 0.3.7 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -2481,7 +2481,7 @@ name = "tokio-io"
 version = "0.1.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "bytes 0.4.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "bytes 0.4.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "futures 0.1.11 (registry+https://github.com/rust-lang/crates.io-index)",
  "log 0.3.7 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
@@ -2506,7 +2506,7 @@ name = "tokio-named-pipes"
 version = "0.1.0"
 source = "git+https://github.com/nikvolf/tokio-named-pipes#0b9b728eaeb0a6673c287ac7692be398fd651752"
 dependencies = [
- "bytes 0.4.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "bytes 0.4.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "futures 0.1.11 (registry+https://github.com/rust-lang/crates.io-index)",
  "mio-named-pipes 0.1.4 (git+https://github.com/alexcrichton/mio-named-pipes)",
  "tokio-core 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -2558,7 +2558,7 @@ name = "tokio-uds"
 version = "0.1.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "bytes 0.4.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "bytes 0.4.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "futures 0.1.11 (registry+https://github.com/rust-lang/crates.io-index)",
  "iovec 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "libc 0.2.21 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -2712,7 +2712,7 @@ name = "ws"
 version = "0.5.3"
 source = "git+https://github.com/paritytech/ws-rs.git?branch=parity-1.7#30415c17f1bec53b2dcabae5b8b887df75dcbe34"
 dependencies = [
- "bytes 0.4.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "bytes 0.4.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "httparse 1.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "log 0.3.7 (registry+https://github.com/rust-lang/crates.io-index)",
  "mio 0.6.1 (git+https://github.com/paritytech/mio)",
@@ -2800,7 +2800,7 @@ dependencies = [
 "checksum bn 0.4.4 (git+https://github.com/paritytech/bn)" = "<none>"
 "checksum byteorder 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)" = "c40977b0ee6b9885c9013cd41d9feffdd22deb3bb4dc3a71d901cc7a77de18c8"
 "checksum bytes 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)" = "c129aff112dcc562970abb69e2508b40850dd24c274761bb50fb8a0067ba6c27"
-"checksum bytes 0.4.1 (registry+https://github.com/rust-lang/crates.io-index)" = "46112a0060ae15e3a3f9a445428a53e082b91215b744fa27a1948842f4a64b96"
+"checksum bytes 0.4.3 (registry+https://github.com/rust-lang/crates.io-index)" = "f9edb851115d67d1f18680f9326901768a91d37875b87015518357c6ce22b553"
 "checksum cfg-if 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)" = "de1e760d7b6535af4241fca8bd8adf68e2e7edacc6b29f5d399050c5e48cf88c"
 "checksum cid 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)" = "e53e6cdfa5ca294863e8c8a32a7cdb4dc0a442c8971d47a0e75b6c27ea268a6a"
 "checksum clippy 0.0.103 (registry+https://github.com/rust-lang/crates.io-index)" = "5b4fabf979ddf6419a313c1c0ada4a5b95cfd2049c56e8418d622d27b4b6ff32"