diff --git a/Cargo.toml b/Cargo.toml
index a301894..4b061e6 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -18,7 +18,7 @@ rustdoc-args = ["--cfg", "docsrs"]
 
 [dependencies]
 arbitrary       = { version = "1", optional = true, features = ["derive"] }
-base64          = "0.21"
+base64          = "0.22"
 bcder           = { version = "0.7.3", optional = true }
 bytes           = "1.0"
 chrono          = { version = "0.4.35", features = [ "serde" ] }