diff --git a/pkgs/development/python-modules/configclass/default.nix b/pkgs/development/python-modules/configclass/default.nix
index 014557e41aed..874bda10e19e 100644
--- a/pkgs/development/python-modules/configclass/default.nix
+++ b/pkgs/development/python-modules/configclass/default.nix
@@ -2,21 +2,26 @@
   lib,
   fetchPypi,
   buildPythonPackage,
+  setuptools,
   mergedict,
   pytestCheckHook,
 }:
 
-buildPythonPackage rec {
+buildPythonPackage (finalAttrs: {
   pname = "configclass";
   version = "0.2.0";
-  format = "setuptools";
+  pyproject = true;
+
+  __structuredAttrs = true;
 
   src = fetchPypi {
-    inherit pname version;
+    inherit (finalAttrs) pname version;
     hash = "sha256-aoDKBuDxJCeXbVwCXhse6FCbDDM30/Xa8p9qRvDkWBk=";
   };
 
-  propagatedBuildInputs = [ mergedict ];
+  build-system = [ setuptools ];
+
+  dependencies = [ mergedict ];
 
   nativeCheckInputs = [ pytestCheckHook ];
 
@@ -25,7 +30,8 @@ buildPythonPackage rec {
   meta = {
     description = "Python to class to hold configuration values";
     homepage = "https://github.com/schettino72/configclass/";
+    changelog = "https://github.com/schettino72/configclass/blob/${finalAttrs.version}/CHANGES";
     license = lib.licenses.mit;
     maintainers = with lib.maintainers; [ onny ];
   };
-}
+})