diff --git a/pkgs/development/python-modules/cppy/default.nix b/pkgs/development/python-modules/cppy/default.nix
index 9c41a16abfbe..ceb30a2c235f 100644
--- a/pkgs/development/python-modules/cppy/default.nix
+++ b/pkgs/development/python-modules/cppy/default.nix
@@ -1,23 +1,27 @@
 { lib
 , buildPythonPackage
 , fetchPypi
-, isPy3k
+, pythonOlder
 , pytestCheckHook
+, setuptools-scm
 }:
 
 buildPythonPackage rec {
   pname = "cppy";
   version = "1.2.0";
+  disabled = pythonOlder "3.7";
 
   src = fetchPypi {
     inherit pname version;
     sha256 = "sha256-leiGLk+CbD8qa3tlgzOxYvgMvp+UOqDQp6ay74UK7/w=";
   };
 
-  # Not supported
-  disabled = !isPy3k;
+  nativeBuildInputs = [
+    setuptools-scm
+  ];
 
   checkInputs = [ pytestCheckHook ];
+
   pythonImportsCheck = [ "cppy" ];
 
   meta = {