diff --git a/Cargo.toml b/Cargo.toml
index 91a065ec..51552561 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -40,7 +40,7 @@ pre-iron-gid = []
 # rustdds = {   git = "https://github.com/Atostek/RustDDS.git" }
 rustdds = {  version = "~0.11.1"  } # release setting
 
-mio = "^0.6.23"
+mio = "^1.0.3"
 mio-extras = "2.0.6"
 log = "0.4.11"
 serde = { version = "1.0", features = ["derive"] }