diff --git a/pkgs/development/python-modules/debtcollector/default.nix b/pkgs/development/python-modules/debtcollector/default.nix
index e5583dd0b1ad..d9b2011b17f2 100644
--- a/pkgs/development/python-modules/debtcollector/default.nix
+++ b/pkgs/development/python-modules/debtcollector/default.nix
@@ -5,6 +5,7 @@
   openstackdocstheme,
   pbr,
   six,
+  setuptools,
   sphinxHook,
   wrapt,
   callPackage,
@@ -13,22 +14,23 @@
 buildPythonPackage rec {
   pname = "debtcollector";
   version = "3.0.0";
-  format = "setuptools";
+  pyproject = true;
 
   src = fetchPypi {
     inherit pname version;
     hash = "sha256-KokX0lsOHx0NNl08HG7Px6UiselxbooaSpFRJvfM6m8=";
   };
 
-  nativeBuildInputs = [
+  build-system = [
     openstackdocstheme
     pbr
+    setuptools
     sphinxHook
   ];
 
   sphinxBuilders = [ "man" ];
 
-  propagatedBuildInputs = [
+  dependencies = [
     six
     wrapt
   ];