diff --git a/pkgs/development/python-modules/character-encoding-utils/default.nix b/pkgs/development/python-modules/character-encoding-utils/default.nix
index 0aab3223ee3a..b1c42d3f0f2b 100644
--- a/pkgs/development/python-modules/character-encoding-utils/default.nix
+++ b/pkgs/development/python-modules/character-encoding-utils/default.nix
@@ -1,16 +1,16 @@
 { lib
 , buildPythonPackage
 , fetchPypi
-, pytestCheckHook
-, pythonOlder
-, nix-update-script
 , hatch-vcs
 , hatchling
+, pytestCheckHook
+, pythonOlder
 }:
 
 buildPythonPackage rec {
   pname = "character-encoding-utils";
   version = "0.0.8";
+  pyproject = true;
 
   disabled = pythonOlder "3.11";
 
@@ -20,21 +20,22 @@ buildPythonPackage rec {
     hash = "sha256-UXX4L/x7fP37ZEFDCPc0KRNyx47xvwY0Jz+lfxzUulg=";
   };
 
-  format = "pyproject";
-
-  nativeBuildInputs = [
+  build-system = [
     hatch-vcs
     hatchling
   ];
 
-  checkInputs = [ pytestCheckHook ];
+  nativeCheckInputs = [
+    pytestCheckHook
+  ];
 
-  passthru.updateScript = nix-update-script { };
+  pythonImportsCheck = [
+    "character_encoding_utils"
+  ];
 
   meta = {
-    homepage = "https://github.com/TakWolf/character-encoding-utils";
     description = "Some character encoding utils";
-    platforms = lib.platforms.all;
+    homepage = "https://github.com/TakWolf/character-encoding-utils";
     license = lib.licenses.mit;
     maintainers = with lib.maintainers; [ h7x4 ];
   };