diff --git a/sasl/Cargo.toml b/sasl/Cargo.toml
index 8c0ebe2..0593f34 100644
--- a/sasl/Cargo.toml
+++ b/sasl/Cargo.toml
@@ -18,7 +18,7 @@ default = ["scram"]
 scram = ["openssl"]
 
 [dependencies]
-base64 = "0.4.0"
+base64 = "0.5.0"
 
 [dependencies.openssl]
 version = "0.9.7"