diff --git a/Cargo.toml b/Cargo.toml
index 1102d1e..b52a901 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -16,7 +16,7 @@ log = "0.4"
 serde = { version = "1.0", features = ["derive"] }
 serde_json = "1.0"
 sodiumoxide = "0.2"
-base64 = "0.13"
+base64 = "0.21"
 
 [dev-dependencies]
 env_logger = "0.9"