diff --git a/Cargo.lock b/Cargo.lock
index aac8ab34..59525f90 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -551,7 +551,7 @@ dependencies = [
 
 [[package]]
 name = "mio"
-version = "0.6.5"
+version = "0.6.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "iovec 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -559,7 +559,7 @@ dependencies = [
  "lazycell 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "libc 0.2.21 (registry+https://github.com/rust-lang/crates.io-index)",
  "log 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
- "miow 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "miow 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "net2 0.2.27 (registry+https://github.com/rust-lang/crates.io-index)",
  "slab 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "winapi 0.2.8 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -578,7 +578,7 @@ dependencies = [
 
 [[package]]
 name = "miow"
-version = "0.2.0"
+version = "0.2.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "kernel32-sys 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -1105,7 +1105,7 @@ dependencies = [
  "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 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
- "mio 0.6.5 (registry+https://github.com/rust-lang/crates.io-index)",
+ "mio 0.6.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "scoped-tls 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "slab 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "tokio-io 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -1271,9 +1271,9 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 "checksum memchr 1.0.1 (registry+https://github.com/rust-lang/crates.io-index)" = "1dbccc0e46f1ea47b9f17e6d67c5a96bd27030519c519c9c91327e31275a47b4"
 "checksum mime 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)" = "b5c93a4bd787ddc6e7833c519b73a50883deb5863d76d9b71eb8216fb7f94e66"
 "checksum mio 0.6.1 (git+https://github.com/ethcore/mio.git)" = "<none>"
-"checksum mio 0.6.5 (registry+https://github.com/rust-lang/crates.io-index)" = "aa30e3753079b08ce3d75cf3b44783e36fe0e1f64065f65c1d894d1688fb2580"
+"checksum mio 0.6.6 (registry+https://github.com/rust-lang/crates.io-index)" = "f27d38f824a0d267d55b29b171e9e99269a53812e385fa75c1fe700ae254a6a4"
 "checksum miow 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)" = "3e690c5df6b2f60acd45d56378981e827ff8295562fc8d34f573deb267a59cd1"
-"checksum miow 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)" = "3a78d2605eb97302c10cf944b8d96b0a2a890c52957caf92fcd1f24f69049579"
+"checksum miow 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)" = "8c1f2f3b1cf331de6896aabf6e9d55dca90356cc9960cca7eaaf408a355ae919"
 "checksum murmur3 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)" = "ece7fe85164ffce69891c581b6b035a3c2f66dd3459f299d43d5efff90663e22"
 "checksum net2 0.2.27 (registry+https://github.com/rust-lang/crates.io-index)" = "18b9642ad6222faf5ce46f6966f59b71b9775ad5758c9e09fcf0a6c8061972b4"
 "checksum nix 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)" = "a0d95c5fa8b641c10ad0b8887454ebaafa3c92b5cd5350f8fc693adafd178e7b"