diff --git a/Cargo.toml b/Cargo.toml
index b60d083..3342a7c 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -11,7 +11,7 @@ repository = "https://github.com/vityafx/challonge-rs"
 documentation = "https://docs.rs/challonge/"
 
 [dependencies]
-base64 = "0.13"
+base64 = "0.21"
 serde_json = "1"
 chrono = "0.4"
 log = "0.4"