diff --git a/pkgs/development/python-modules/yamale/default.nix b/pkgs/development/python-modules/yamale/default.nix
index 2e05aa453956..96d69aaddea7 100644
--- a/pkgs/development/python-modules/yamale/default.nix
+++ b/pkgs/development/python-modules/yamale/default.nix
@@ -1,11 +1,12 @@
-{ lib
-, buildPythonPackage
-, fetchFromGitHub
-, pythonOlder
-, pytestCheckHook
-, pyyaml
-, ruamel-yaml
-, setuptools
+{
+  lib,
+  buildPythonPackage,
+  fetchFromGitHub,
+  pythonOlder,
+  pytestCheckHook,
+  pyyaml,
+  ruamel-yaml,
+  setuptools,
 }:
 
 buildPythonPackage rec {
@@ -22,22 +23,16 @@ buildPythonPackage rec {
     hash = "sha256-UTtase1b8Zjaixhp/g0tLtT6QZS4cyaSHcFz+h9Qoos=";
   };
 
-  build-system = [
-    setuptools
-  ];
+  build-system = [ setuptools ];
 
   dependencies = [
     pyyaml
     ruamel-yaml
   ];
 
-  nativeCheckInputs = [
-    pytestCheckHook
-  ];
+  nativeCheckInputs = [ pytestCheckHook ];
 
-  pythonImportsCheck = [
-    "yamale"
-  ];
+  pythonImportsCheck = [ "yamale" ];
 
   meta = with lib; {
     description = "A schema and validator for YAML";