diff --git a/pkgs/development/python-modules/openevsewifi/default.nix b/pkgs/development/python-modules/openevsewifi/default.nix
index 53934a98d819..48ca148b5563 100644
--- a/pkgs/development/python-modules/openevsewifi/default.nix
+++ b/pkgs/development/python-modules/openevsewifi/default.nix
@@ -6,6 +6,7 @@
   fetchpatch,
   poetry-core,
   pytestCheckHook,
+  pytest-cov-stub,
   requests,
   requests-mock,
 }:
@@ -32,6 +33,7 @@ buildPythonPackage rec {
   nativeCheckInputs = [
     requests-mock
     pytestCheckHook
+    pytest-cov-stub
   ];
 
   patches = [
@@ -43,11 +45,6 @@ buildPythonPackage rec {
     })
   ];
 
-  postPatch = ''
-    substituteInPlace pyproject.toml \
-      --replace 'pytest-cov = "^2.8.1"' ""
-  '';
-
   pythonImportsCheck = [ "openevsewifi" ];
 
   meta = {