diff --git a/sdk/Cargo.toml b/sdk/Cargo.toml
index d2e5e0f30..be3372919 100644
--- a/sdk/Cargo.toml
+++ b/sdk/Cargo.toml
@@ -69,7 +69,7 @@ async-generic = "1.1"
 async-recursion = "1.1.1"
 async-trait = { version = "0.1.77" }
 atree = "0.5.2"
-base64 = "0.21.2"
+base64 = "0.22.1"
 bcder = "0.7.3"
 bytes = "1.4.0"
 byteorder = { version = "1.4.3", default-features = false }