diff --git a/pkgs/development/python-modules/camel-converter/default.nix b/pkgs/development/python-modules/camel-converter/default.nix
index 65703ad76bd0..95967d2300e4 100644
--- a/pkgs/development/python-modules/camel-converter/default.nix
+++ b/pkgs/development/python-modules/camel-converter/default.nix
@@ -1,15 +1,16 @@
-{ lib
-, buildPythonPackage
-, fetchFromGitHub
-, poetry-core
-, pydantic
-, pytestCheckHook
-, pythonOlder
+{
+  lib,
+  buildPythonPackage,
+  fetchFromGitHub,
+  poetry-core,
+  pydantic,
+  pytestCheckHook,
+  pythonOlder,
 }:
 
 buildPythonPackage rec {
   pname = "camel-converter";
-  version = "3.1.1";
+  version = "3.1.2";
   pyproject = true;
 
   disabled = pythonOlder "3.8";
@@ -18,31 +19,23 @@ buildPythonPackage rec {
     owner = "sanders41";
     repo = "camel-converter";
     rev = "refs/tags/v${version}";
-    hash = "sha256-xrdk5Y3H8KlQaGtJYdJNHq16Qfos2p+93uIAfIl098c=";
+    hash = "sha256-CJbflRI3wfUmPoVuLwZDYcobESmySvnS99PdpSDhDLk=";
   };
 
   postPatch = ''
     substituteInPlace pyproject.toml \
-      --replace "--cov=camel_converter --cov-report term-missing --no-cov-on-fail" ""
+      --replace-fail "--cov=camel_converter --cov-report term-missing --no-cov-on-fail" ""
   '';
 
-  nativeBuildInputs = [
-    poetry-core
-  ];
+  build-system = [ poetry-core ];
 
   passthru.optional-dependencies = {
-    pydantic = [
-      pydantic
-    ];
+    pydantic = [ pydantic ];
   };
 
-  nativeCheckInputs = [
-    pytestCheckHook
-  ] ++ passthru.optional-dependencies.pydantic;
+  nativeCheckInputs = [ pytestCheckHook ] ++ passthru.optional-dependencies.pydantic;
 
-  pythonImportsCheck = [
-    "camel_converter"
-  ];
+  pythonImportsCheck = [ "camel_converter" ];
 
   disabledTests = [
     # AttributeError: 'Test' object has no attribute 'model_dump'