diff --git a/pkgs/development/python-modules/google-cloud-monitoring/default.nix b/pkgs/development/python-modules/google-cloud-monitoring/default.nix
index 390aaf14b618..f4e381ace9df 100644
--- a/pkgs/development/python-modules/google-cloud-monitoring/default.nix
+++ b/pkgs/development/python-modules/google-cloud-monitoring/default.nix
@@ -3,12 +3,12 @@
 , fetchPypi
 , google-api-core
 , google-cloud-testutils
-, libcst
+, mock
 , proto-plus
 , pandas
 , pytestCheckHook
 , pytest-asyncio
-, mock
+, protobuf
 , pythonOlder
 }:
 
@@ -25,18 +25,23 @@ buildPythonPackage rec {
   };
 
   propagatedBuildInputs = [
-    libcst
     google-api-core
     proto-plus
-  ];
+    protobuf
+  ] ++ google-api-core.optional-dependencies.grpc;
+
+  passthru.optional-dependencies = {
+    pandas = [
+      pandas
+    ];
+  };
 
   checkInputs = [
     google-cloud-testutils
     mock
-    pandas
     pytestCheckHook
     pytest-asyncio
-  ];
+  ] ++ passthru.optional-dependencies.pandas;
 
   disabledTests = [
     # requires credentials