diff --git a/pkgs/development/python-modules/simpleeval/default.nix b/pkgs/development/python-modules/simpleeval/default.nix
index 736b937972a7..178782630f75 100644
--- a/pkgs/development/python-modules/simpleeval/default.nix
+++ b/pkgs/development/python-modules/simpleeval/default.nix
@@ -2,23 +2,23 @@
   lib,
   buildPythonPackage,
   fetchFromGitHub,
-  setuptools,
+  hatchling,
   pytestCheckHook,
 }:
 
 buildPythonPackage rec {
   pname = "simpleeval";
   version = "1.0.3";
-  format = "pyproject";
+  pyproject = true;
 
   src = fetchFromGitHub {
     owner = "danthedeckie";
-    repo = pname;
+    repo = "simpleeval";
     tag = version;
     hash = "sha256-CwCuQ/wd8nLKKXji2dzz9mvZrQEm2/kEm93Pan/8+90=";
   };
 
-  nativeBuildInputs = [ setuptools ];
+  build-system = [ hatchling ];
 
   nativeCheckInputs = [ pytestCheckHook ];