diff --git a/pkgs/development/python-modules/amazon_kclpy/default.nix b/pkgs/development/python-modules/amazon_kclpy/default.nix
index 7394606965f3..4e25a3182538 100644
--- a/pkgs/development/python-modules/amazon_kclpy/default.nix
+++ b/pkgs/development/python-modules/amazon_kclpy/default.nix
@@ -2,13 +2,13 @@
 
 buildPythonPackage rec {
   pname = "amazon_kclpy";
-  version = "2.0.6";
+  version = "2.1.1";
 
   src = fetchFromGitHub {
     owner = "awslabs";
     repo = "amazon-kinesis-client-python";
-    rev = "v${version}";
-    sha256 = "0gbpwhpd9i13vi0cch48qqrma90p230psqrkbfcjvdah69w434l4";
+    rev = "refs/tags/v${version}";
+    sha256 = "sha256-Z0MC4SbZS82beMA7UunEfs4KvrmhW5xAhFeb7WXA7DM=";
   };
 
   # argparse is just required for python2.6