diff --git a/libsignal-service-hyper/Cargo.toml b/libsignal-service-hyper/Cargo.toml
index ef977fbaf..d54decbb2 100644
--- a/libsignal-service-hyper/Cargo.toml
+++ b/libsignal-service-hyper/Cargo.toml
@@ -25,7 +25,7 @@ hyper-timeout = "0.4"
 headers = "0.3"
 
 # for websocket support
-async-tungstenite = { version = "0.17", features = ["tokio-rustls-native-certs"] }
+async-tungstenite = { version = "0.21", features = ["tokio-rustls-native-certs"] }
 
 tokio = { version = "1.0", features = ["macros"] }
 tokio-rustls = "0.23"