diff --git a/Cargo.lock b/Cargo.lock
index 3cecf50c3..381b202be 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -164,7 +164,7 @@ version = "0.2.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "time 0.1.35 (registry+https://github.com/rust-lang/crates.io-index)",
- "url 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "url 1.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -292,7 +292,7 @@ dependencies = [
  "serde_codegen 0.7.9 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_json 0.7.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "syntex 0.33.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "url 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "url 1.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -369,7 +369,7 @@ dependencies = [
  "parity-minimal-sysui 0.1.0 (git+https://github.com/ethcore/parity-dapps-minimal-sysui-rs.git)",
  "rand 0.3.14 (registry+https://github.com/rust-lang/crates.io-index)",
  "rustc_version 0.1.7 (registry+https://github.com/rust-lang/crates.io-index)",
- "ws 0.5.1 (git+https://github.com/ethcore/ws-rs.git)",
+ "ws 0.5.0 (git+https://github.com/ethcore/ws-rs.git?branch=stable)",
 ]
 
 [[package]]
@@ -561,7 +561,7 @@ dependencies = [
  "traitobject 0.0.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "typeable 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "unicase 1.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "url 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "url 1.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "vecio 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -711,22 +711,6 @@ dependencies = [
  "unicase 1.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
-[[package]]
-name = "mio"
-version = "0.5.0"
-source = "git+https://github.com/carllerche/mio.git#f4aa49a9d2c4507fb33a4533d5238e0365f67c99"
-dependencies = [
- "bytes 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.12 (registry+https://github.com/rust-lang/crates.io-index)",
- "log 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
- "miow 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "net2 0.2.23 (registry+https://github.com/rust-lang/crates.io-index)",
- "nix 0.5.0-pre (git+https://github.com/carllerche/nix-rust?rev=c4257f8a76)",
- "slab 0.1.3 (registry+https://github.com/rust-lang/crates.io-index)",
- "time 0.1.35 (registry+https://github.com/rust-lang/crates.io-index)",
- "winapi 0.2.6 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
 [[package]]
 name = "mio"
 version = "0.5.1"
@@ -800,15 +784,6 @@ dependencies = [
  "ws2_32-sys 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
-[[package]]
-name = "nix"
-version = "0.5.0-pre"
-source = "git+https://github.com/carllerche/nix-rust?rev=c4257f8a76#c4257f8a76b69b0d2e9a001d83e4bef67c03b23f"
-dependencies = [
- "bitflags 0.3.3 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.12 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
 [[package]]
 name = "nix"
 version = "0.5.0"
@@ -1406,7 +1381,7 @@ dependencies = [
 
 [[package]]
 name = "url"
-version = "1.0.0"
+version = "1.1.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "idna 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -1470,16 +1445,15 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "ws"
-version = "0.5.1"
-source = "git+https://github.com/ethcore/ws-rs.git#d5745df8ea1ab82cd2b844f15ca1ac759e7aa9f5"
+version = "0.5.0"
+source = "git+https://github.com/ethcore/ws-rs.git?branch=stable#abd219709b9dd504a7101d9ba772e0df523fe534"
 dependencies = [
  "httparse 1.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "log 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
- "mio 0.5.0 (git+https://github.com/carllerche/mio.git)",
+ "mio 0.5.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "rand 0.3.14 (registry+https://github.com/rust-lang/crates.io-index)",
  "sha1 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "slab 0.1.3 (registry+https://github.com/rust-lang/crates.io-index)",
- "url 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "url 1.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
diff --git a/signer/Cargo.toml b/signer/Cargo.toml
index 0cae9b0a5..98f22752b 100644
--- a/signer/Cargo.toml
+++ b/signer/Cargo.toml
@@ -15,7 +15,7 @@ rand = "0.3.14"
 jsonrpc-core = "2.0"
 log = "0.3"
 env_logger = "0.3"
-ws = { git = "https://github.com/ethcore/ws-rs.git" }
+ws = { git = "https://github.com/ethcore/ws-rs.git", branch = "stable" }
 ethcore-util = { path = "../util" }
 ethcore-rpc = { path = "../rpc" }
 parity-minimal-sysui = { git = "https://github.com/ethcore/parity-dapps-minimal-sysui-rs.git" }