diff --git a/pkgs/development/python-modules/protonup-ng/default.nix b/pkgs/development/python-modules/protonup-ng/default.nix
index 845a69540800..553959f380ff 100644
--- a/pkgs/development/python-modules/protonup-ng/default.nix
+++ b/pkgs/development/python-modules/protonup-ng/default.nix
@@ -4,15 +4,16 @@
   fetchPypi,
   requests,
   configparser,
+  setuptools,
 }:
 
-buildPythonPackage rec {
+buildPythonPackage (finalAttrs: {
   pname = "protonup-ng";
   version = "0.2.1";
-  format = "setuptools";
+  pyproject = true;
 
   src = fetchPypi {
-    inherit pname version;
+    inherit (finalAttrs) pname version;
     hash = "sha256-rys9Noa3+w4phttfcI1OGEDfHMy8s80bm8kM8TzssQA=";
   };
 
@@ -21,7 +22,8 @@ buildPythonPackage rec {
       --replace "argparse" ""
   '';
 
-  propagatedBuildInputs = [
+  build-system = [ setuptools ];
+  dependencies = [
     requests
     configparser
   ];
@@ -38,4 +40,4 @@ buildPythonPackage rec {
     ];
     mainProgram = "protonup";
   };
-}
+})