diff --git a/pkgs/development/python-modules/mockupdb/default.nix b/pkgs/development/python-modules/mockupdb/default.nix
index 47107f0617be..ddd72e7e7c1a 100644
--- a/pkgs/development/python-modules/mockupdb/default.nix
+++ b/pkgs/development/python-modules/mockupdb/default.nix
@@ -1,19 +1,43 @@
-{ lib, buildPythonPackage, fetchPypi
+{ lib
+, buildPythonPackage
+, fetchPypi
 , pymongo
+, pythonOlder
+, pytestCheckHook
 }:
 
 buildPythonPackage rec {
   pname = "mockupdb";
   version = "1.8.1";
+  format = "setuptools";
+
+  disabled = pythonOlder "3.9";
 
   src = fetchPypi {
     inherit pname version;
-    sha256 = "d36d0e5b6445ff9141e34d012fa2b5dfe589847aa1e3ecb8d774074962af944e";
+    hash = "sha256-020OW2RF/5FB400BL6K13+WJhHqh4+y413QHSWKvlE4=";
   };
 
-  propagatedBuildInputs = [ pymongo ];
+  propagatedBuildInputs = [
+    pymongo
+  ];
 
-  pythonImportsCheck = [ "mockupdb" ];
+  checkInputs = [
+    pytestCheckHook
+  ];
+
+  pythonImportsCheck = [
+    "mockupdb"
+  ];
+
+  disabledTests = [
+    # AssertionError: expected to receive Request(), got nothing
+    "test_flags"
+    "test_iteration"
+    "test_ok"
+    "test_ssl_basic"
+    "test_unix_domain_socket"
+  ];
 
   meta = with lib; {
     description = "Simulate a MongoDB server";