diff --git a/Cargo.toml b/Cargo.toml
index 5e1523a..fa233de 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -25,4 +25,4 @@ md5 = "0.7.0"
 base64 = "0.21.7"
 hmac = "0.12.1"
 sha2 = "0.10.8"
-aes = "0.8.3"
+aes = "0.8.4"