diff --git a/pkgs/development/python-modules/stups-pierone/default.nix b/pkgs/development/python-modules/stups-pierone/default.nix
index eaf58dc01c88..f627f0e7231e 100644
--- a/pkgs/development/python-modules/stups-pierone/default.nix
+++ b/pkgs/development/python-modules/stups-pierone/default.nix
@@ -7,19 +7,21 @@
 , pytest
 , pytest-cov
 , hypothesis
-, isPy3k
+, pythonOlder
 }:
 
 buildPythonPackage rec {
   pname = "stups-pierone";
   version = "1.1.50";
-  disabled = !isPy3k;
+  format = "setuptools";
+
+  disabled = pythonOlder "3.7";
 
   src = fetchFromGitHub {
     owner = "zalando-stups";
     repo = "pierone-cli";
     rev = version;
-    sha256 = "sha256-YAoj+Ou0Q64QRN5R0CQSxQGP7xDQQNISS6VT5txV0sw=";
+    hash = "sha256-YAoj+Ou0Q64QRN5R0CQSxQGP7xDQQNISS6VT5txV0sw=";
   };
 
   propagatedBuildInputs = [
@@ -28,9 +30,9 @@ buildPythonPackage rec {
     stups-zign
   ];
 
-  preCheck = "
+  preCheck = ''
     export HOME=$TEMPDIR
-  ";
+  '';
 
   checkInputs = [
     pytest
@@ -38,10 +40,14 @@ buildPythonPackage rec {
     hypothesis
   ];
 
+  pythonImportsCheck = [
+    "pierone"
+  ];
+
   meta = with lib; {
     description = "Convenient command line client for STUPS' Pier One Docker registry";
     homepage = "https://github.com/zalando-stups/pierone-cli";
     license = licenses.asl20;
-    maintainers = [ maintainers.mschuwalow ];
+    maintainers = with maintainers; [ mschuwalow ];
   };
 }