diff --git a/pkgs/development/python-modules/aiowaqi/default.nix b/pkgs/development/python-modules/aiowaqi/default.nix
index 773c9206b919..5a1c0488996a 100644
--- a/pkgs/development/python-modules/aiowaqi/default.nix
+++ b/pkgs/development/python-modules/aiowaqi/default.nix
@@ -6,6 +6,7 @@
   fetchFromGitHub,
   poetry-core,
   pytest-asyncio,
+  pytest-cov-stub,
   pytestCheckHook,
   pythonOlder,
   syrupy,
@@ -26,11 +27,6 @@ buildPythonPackage rec {
     hash = "sha256-YWTGEOSSkZ0XbZUE3k+Dn9qg8Pmwip9wCp8e/j1D9io=";
   };
 
-  postPatch = ''
-    substituteInPlace pyproject.toml \
-      --replace-fail "--cov" ""
-  '';
-
   build-system = [ poetry-core ];
 
   dependencies = [
@@ -41,6 +37,7 @@ buildPythonPackage rec {
   nativeCheckInputs = [
     aresponses
     pytest-asyncio
+    pytest-cov-stub
     pytestCheckHook
     syrupy
   ];