diff --git a/pkgs/development/python-modules/google_cloud_kms/default.nix b/pkgs/development/python-modules/google_cloud_kms/default.nix
index 383ed1bdbb90..e3e9ed58eba6 100644
--- a/pkgs/development/python-modules/google_cloud_kms/default.nix
+++ b/pkgs/development/python-modules/google_cloud_kms/default.nix
@@ -10,11 +10,11 @@
 
 buildPythonPackage rec {
   pname = "google-cloud-kms";
-  version = "1.1.0";
+  version = "1.2.1";
 
   src = fetchPypi {
     inherit pname version;
-    sha256 = "0ypn95swjj93kvdcrvmijmh3vzpr499a3krk923a86m8vlcwcvjm";
+    sha256 = "bb2cf9bff554df05f32c9a51cc50cdd0d6fbabcdc20526460df5306ea28547ff";
   };
 
   checkInputs = [ pytest mock ];