diff --git a/plugins/authenticator/Cargo.toml b/plugins/authenticator/Cargo.toml
index b8b039ef7f..e7cdc77b61 100644
--- a/plugins/authenticator/Cargo.toml
+++ b/plugins/authenticator/Cargo.toml
@@ -18,7 +18,7 @@ thiserror = { workspace = true }
 authenticator = "0.3.1"
 once_cell = "1"
 sha2 = "0.10"
-base64 = "0.21"
+base64 = "0.22"
 chrono = "0.4"
 bytes = "1"
 byteorder = "1"