diff --git a/pkgs/development/python-modules/simber/default.nix b/pkgs/development/python-modules/simber/default.nix
index 98aab295b2b3..ce93635e115e 100644
--- a/pkgs/development/python-modules/simber/default.nix
+++ b/pkgs/development/python-modules/simber/default.nix
@@ -2,23 +2,28 @@
   lib,
   buildPythonPackage,
   fetchFromGitHub,
+  setuptools,
   colorama,
   pytestCheckHook,
 }:
 
-buildPythonPackage rec {
+buildPythonPackage (finalAttrs: {
   pname = "simber";
   version = "0.2.6";
-  format = "setuptools";
+  pyproject = true;
+
+  __structuredAttrs = true;
 
   src = fetchFromGitHub {
     owner = "deepjyoti30";
     repo = "simber";
-    tag = version;
+    tag = finalAttrs.version;
     hash = "sha256-kHoFZD7nhVxJu9MqePLkL7KTG2saPecY9238c/oeEco=";
   };
 
-  propagatedBuildInputs = [ colorama ];
+  build-system = [ setuptools ];
+
+  dependencies = [ colorama ];
 
   nativeCheckInputs = [ pytestCheckHook ];
 
@@ -27,8 +32,8 @@ buildPythonPackage rec {
   meta = {
     description = "Simple, minimal and powerful logger for Python";
     homepage = "https://github.com/deepjyoti30/simber";
-    changelog = "https://github.com/deepjyoti30/simber/releases/tag/${version}";
+    changelog = "https://github.com/deepjyoti30/simber/releases/tag/${finalAttrs.version}";
     license = lib.licenses.mit;
     maintainers = with lib.maintainers; [ j0hax ];
   };
-}
+})