diff --git a/Cargo.lock b/Cargo.lock
index 28f20a9d..8bfb49a9 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -180,9 +180,9 @@ dependencies = [
 
 [[package]]
 name = "base64"
-version = "0.21.2"
+version = "0.21.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "604178f6c5c21f02dc555784810edfb88d34ac2c73b2eae109655649ee73ce3d"
+checksum = "c79fed4cdb43e993fcdadc7e58a09fd0e3e649c4436fa11da71c9f1f3ee7feb9"
 
 [[package]]
 name = "bb8"