diff --git a/rotate-google-service-user/Cargo.toml b/rotate-google-service-user/Cargo.toml
index 5ab8b86..60c5409 100644
--- a/rotate-google-service-user/Cargo.toml
+++ b/rotate-google-service-user/Cargo.toml
@@ -16,7 +16,7 @@ test = ["lambda-runtime-types/test"]
 [dependencies]
 anyhow = "1"
 async-trait = "0.1"
-base64 = "0.21"
+base64 = "0.22"
 jsonwebtoken = "8"
 lambda-runtime-types = { version = "0.6", default-features = false, features = ["rotate_rusoto"] }
 log = "0.4"