diff --git a/pkgs/development/python-modules/google_cloud_pubsub/default.nix b/pkgs/development/python-modules/google_cloud_pubsub/default.nix
index 56a95692846..4af622dc66e 100644
--- a/pkgs/development/python-modules/google_cloud_pubsub/default.nix
+++ b/pkgs/development/python-modules/google_cloud_pubsub/default.nix
@@ -1,36 +1,34 @@
-{ stdenv
-, buildPythonPackage
-, fetchPypi
-, enum34
-, grpc_google_iam_v1
-, google_api_core
-, pytest
-, mock
-}:
+{ stdenv, buildPythonPackage, fetchPypi, pythonOlder, pytestCheckHook
+, google_api_core, google_cloud_testutils, grpc_google_iam_v1, libcst, mock
+, proto-plus, pytest-asyncio }:
 
 buildPythonPackage rec {
   pname = "google-cloud-pubsub";
-  version = "1.7.0";
+  version = "2.1.0";
 
   src = fetchPypi {
     inherit pname version;
-    sha256 = "c8d098ebd208d00c8f3bb55eefecd8553e7391d59700426a97d35125f0dcb248";
+    sha256 = "0358g5q4igq1pgy8dznbbkc6y7zf36y4m81hhh8hvzzhaa37vc22";
   };
 
-  checkInputs = [ pytest mock ];
-  propagatedBuildInputs = [ enum34 grpc_google_iam_v1 google_api_core ];
+  disabled = pythonOlder "3.6";
 
-  # tests don't clean up file descriptors correctly
-  doCheck = false;
-  checkPhase = ''
-    pytest tests/unit
+  checkInputs = [ google_cloud_testutils mock pytestCheckHook pytest-asyncio ];
+  propagatedBuildInputs =
+    [ grpc_google_iam_v1 google_api_core libcst proto-plus ];
+
+  # prevent google directory from shadowing google imports
+  # Tests in pubsub_v1 attempt to contact pubsub.googleapis.com
+  preCheck = ''
+    rm -r google
+    rm -r tests/unit/pubsub_v1
   '';
 
   pythonImportsCheck = [ "google.cloud.pubsub" ];
 
   meta = with stdenv.lib; {
     description = "Google Cloud Pub/Sub API client library";
-    homepage = "https://github.com/GoogleCloudPlatform/google-cloud-python";
+    homepage = "https://pypi.org/project/google-cloud-pubsub";
     license = licenses.asl20;
     maintainers = [ maintainers.costrouc ];
   };