diff --git a/Cargo.toml b/Cargo.toml
index 4382bc8..8be5b65 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -29,7 +29,7 @@ serde = { version = "1.0.130", features = ["derive"] }
 serde_derive = "1.0.136"
 dotenv = "0.15.0"
 rustc-serialize = "0.3.24"
-base64 = "0.20.0"
+base64 = "0.21.0"
 aes-gcm = "0.10.1"
 serde_json = "1.0.68"
 hex = "0.4.3"