diff --git a/pkgs/development/python-modules/google-cloud-os-config/default.nix b/pkgs/development/python-modules/google-cloud-os-config/default.nix
index d1d716cd2085..d6733d4d9319 100644
--- a/pkgs/development/python-modules/google-cloud-os-config/default.nix
+++ b/pkgs/development/python-modules/google-cloud-os-config/default.nix
@@ -2,8 +2,7 @@
 , buildPythonPackage
 , fetchPypi
 , google-api-core
-, libcst
-, mock
+, protobuf
 , proto-plus
 , pytestCheckHook
 , pytest-asyncio
@@ -12,26 +11,25 @@
 
 buildPythonPackage rec {
   pname = "google-cloud-os-config";
-  version = "1.12.4";
+  version = "1.13.0";
   format = "setuptools";
 
   disabled = pythonOlder "3.7";
 
   src = fetchPypi {
     inherit pname version;
-    hash = "sha256-SmzCo/nh6FbTt+7lw4XAyF5gwDHQCOz8Nbl05/AkDfY=";
+    hash = "sha256-CHAiHhXjrLMz7On7Gm5H4fIY3Sq8R2whsI9+D9xXDIM=";
   };
 
   propagatedBuildInputs = [
     google-api-core
-    libcst
     proto-plus
-  ];
+    protobuf
+  ] ++ google-api-core.optional-dependencies.grpc;
 
   checkInputs = [
-    mock
-    pytestCheckHook
     pytest-asyncio
+    pytestCheckHook
   ];
 
   pythonImportsCheck = [