diff --git a/pkgs/development/python-modules/pytoolconfig/default.nix b/pkgs/development/python-modules/pytoolconfig/default.nix
index 8c49cc766d00..fb0b5399f52b 100644
--- a/pkgs/development/python-modules/pytoolconfig/default.nix
+++ b/pkgs/development/python-modules/pytoolconfig/default.nix
@@ -1,34 +1,24 @@
 { lib
 , buildPythonPackage
-, fetchFromGitHub
-, pythonOlder
-
-# build
-, pdm-pep517
-
-# docs
 , docutils
-, sphinxHook
-, sphinx-rtd-theme
-, sphinx-autodoc-typehints
-
-# runtime
-, tomli
+, fetchFromGitHub
 , packaging
-
-# optionals
-, pydantic
+, pdm-backend
 , platformdirs
-, sphinx
-, tabulate
-
-# tests
+, pydantic
 , pytestCheckHook
+, pythonOlder
+, sphinx
+, sphinx-autodoc-typehints
+, sphinx-rtd-theme
+, sphinxHook
+, tabulate
+, tomli
 }:
 
 buildPythonPackage rec {
   pname = "pytoolconfig";
-  version = "1.2.5";
+  version = "1.2.6";
   format = "pyproject";
 
   disabled = pythonOlder "3.8";
@@ -37,7 +27,7 @@ buildPythonPackage rec {
     owner = "bagel897";
     repo = "pytoolconfig";
     rev = "refs/tags/v${version}";
-    hash = "sha256-b7er/IgXr2j9dSnI87669BXWA5CXNTzwa1DTpl8PBZ4=";
+    hash = "sha256-KmmaxFJbvdOGG9T9iiHKnJpFzZiLVkPJki+qHPxPTdY=";
   };
 
   outputs = [
@@ -48,7 +38,7 @@ buildPythonPackage rec {
   PDM_PEP517_SCM_VERSION = version;
 
   nativeBuildInputs = [
-    pdm-pep517
+    pdm-backend
 
     # docs
     docutils
@@ -90,9 +80,9 @@ buildPythonPackage rec {
   ] ++ lib.flatten (builtins.attrValues passthru.optional-dependencies);
 
   meta = with lib; {
-    changelog = "https://github.com/bagel897/pytoolconfig/releases/tag/v${version}";
     description = "Python tool configuration";
     homepage = "https://github.com/bagel897/pytoolconfig";
+    changelog = "https://github.com/bagel897/pytoolconfig/releases/tag/v${version}";
     license = licenses.lgpl3Plus;
     maintainers = with maintainers; [ fab hexa ];
   };