diff --git a/pkgs/development/python-modules/appnope/default.nix b/pkgs/development/python-modules/appnope/default.nix
index 55a66aaf8271..3bf73257df54 100644
--- a/pkgs/development/python-modules/appnope/default.nix
+++ b/pkgs/development/python-modules/appnope/default.nix
@@ -2,13 +2,14 @@
   lib,
   buildPythonPackage,
   fetchFromGitHub,
+  setuptools,
   pytestCheckHook,
 }:
 
 buildPythonPackage rec {
   pname = "appnope";
   version = "0.1.4";
-  format = "setuptools";
+  pyproject = true;
 
   src = fetchFromGitHub {
     owner = "minrk";
@@ -17,6 +18,8 @@ buildPythonPackage rec {
     hash = "sha256-We7sZKVbQFIMdZpS+VMdi0RH1O/qtFNrfJNg/98tO5A=";
   };
 
+  build-system = [ setuptools ];
+
   checkInputs = [ pytestCheckHook ];
 
   meta = {