diff --git a/pingora-proxy/Cargo.toml b/pingora-proxy/Cargo.toml
index d76ab487..45f8ccf8 100644
--- a/pingora-proxy/Cargo.toml
+++ b/pingora-proxy/Cargo.toml
@@ -43,7 +43,7 @@ tokio-test = "0.4"
 env_logger = "0.9"
 hyperlocal = "0.8"
 hyper = "0.14"
-tokio-tungstenite = "0.20.1"
+tokio-tungstenite = "0.21.0"
 pingora-load-balancing = { version = "0.1.0", path = "../pingora-load-balancing" }
 prometheus = "0"
 futures-util = "0.3"