diff --git a/pkgs/development/python-modules/variants/default.nix b/pkgs/development/python-modules/variants/default.nix
index bd8f044b57f6..41c5f862636f 100644
--- a/pkgs/development/python-modules/variants/default.nix
+++ b/pkgs/development/python-modules/variants/default.nix
@@ -2,22 +2,29 @@
   lib,
   buildPythonPackage,
   fetchPypi,
+  setuptools,
   pytestCheckHook,
   setuptools-scm,
   six,
 }:
 
-buildPythonPackage rec {
+buildPythonPackage (finalAttrs: {
   pname = "variants";
   version = "0.2.0";
-  format = "setuptools";
+  pyproject = true;
+
+  __structuredAttrs = true;
 
   src = fetchPypi {
-    inherit pname version;
+    pname = "variants";
+    inherit (finalAttrs) version;
     hash = "sha256-UR91tM90g8J+TYbZrM8rUxcmeQDBZtF2Nr7u0RiSm5A=";
   };
 
-  nativeBuildInputs = [ setuptools-scm ];
+  build-system = [
+    setuptools
+    setuptools-scm
+  ];
 
   nativeCheckInputs = [
     pytestCheckHook
@@ -29,8 +36,8 @@ buildPythonPackage rec {
   meta = {
     description = "Library providing syntactic sugar for creating variant forms of a canonical function";
     homepage = "https://github.com/python-variants/variants";
-    changelog = "https://github.com/python-variants/variants/releases/tag/${version}";
+    changelog = "https://github.com/python-variants/variants/releases/tag/${finalAttrs.version}";
     license = lib.licenses.asl20;
     maintainers = with lib.maintainers; [ rakesh4g ];
   };
-}
+})