diff --git a/Cargo.toml b/Cargo.toml
index 37374f7b6..e20a5a594 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -65,7 +65,7 @@ futures-timer = { version = "2.0.2", optional = true }
 kv-log-macro = { version = "1.0.4", optional = true }
 log = { version = "0.4.8", features = ["kv_unstable"], optional = true }
 memchr = { version = "2.3.3", optional = true }
-mio = { version = "0.6.19", optional = true }
+mio = { version = "0.7.11", optional = true }
 mio-uds = { version = "0.6.7", optional = true }
 num_cpus = { version = "1.12.0", optional = true }
 once_cell = { version = "1.3.1", optional = true }