diff --git a/tokio-xmpp/Cargo.toml b/tokio-xmpp/Cargo.toml
index 1a97143..1fc7da7 100644
--- a/tokio-xmpp/Cargo.toml
+++ b/tokio-xmpp/Cargo.toml
@@ -14,7 +14,7 @@ edition = "2018"
 [dependencies]
 bytes = "1"
 futures = "0.3"
-idna = "0.3"
+idna = "0.4"
 log = "0.4"
 native-tls = { version = "0.2", optional = true }
 sasl = "0.5"