diff --git a/Cargo.toml b/Cargo.toml
index 20226629..f0a2d593 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -22,7 +22,6 @@ hyper = { version = "0.13.0-alpha.1" }
 lazy_static = "1.3"
 libc = "0.2"
 log = "0.4"
-mio = "0.6"
 native-tls = "0.2"
 nix = "0.15"
 openssl = "0.10"