diff --git a/pkgs/development/python-modules/mongomock/default.nix b/pkgs/development/python-modules/mongomock/default.nix
index 85e574f0b6d5..e3dc90ef8082 100644
--- a/pkgs/development/python-modules/mongomock/default.nix
+++ b/pkgs/development/python-modules/mongomock/default.nix
@@ -1,19 +1,23 @@
 { lib
 , buildPythonPackage
 , fetchPypi
+, packaging
 , pbr
-, sentinels
-, six
 , pytestCheckHook
+, pythonOlder
+, sentinels
 }:
 
 buildPythonPackage rec {
   pname = "mongomock";
-  version = "4.0.0";
+  version = "4.1.2";
+  format = "setuptools";
+
+  disabled = pythonOlder "3.6";
 
   src = fetchPypi {
     inherit pname version;
-    sha256 = "sha256-sYMsN0jUdETBiGc3PlzqdUwub2RKDPv9Zn8Xj2i97Pw=";
+    hash = "sha256-8GzWKvuK4+9jujE0mr0iCmV+8N1PAkOilYfFIT+TG30=";
   };
 
   nativeBuildInputs = [
@@ -21,15 +25,17 @@ buildPythonPackage rec {
   ];
 
   propagatedBuildInputs = [
+    packaging
     sentinels
-    six
   ];
 
   checkInputs = [
     pytestCheckHook
   ];
 
-  pythonImportsCheck = [ "mongomock" ];
+  pythonImportsCheck = [
+    "mongomock"
+  ];
 
   meta = with lib; {
     homepage = "https://github.com/mongomock/mongomock";