diff --git a/pkgs/development/python-modules/ratelimit/default.nix b/pkgs/development/python-modules/ratelimit/default.nix
index 0e4bdaca35c1..d754357081c9 100644
--- a/pkgs/development/python-modules/ratelimit/default.nix
+++ b/pkgs/development/python-modules/ratelimit/default.nix
@@ -3,6 +3,7 @@
   buildPythonPackage,
   fetchFromGitHub,
   pytestCheckHook,
+  pytest-cov-stub,
 }:
 
 buildPythonPackage rec {
@@ -17,11 +18,10 @@ buildPythonPackage rec {
     sha256 = "04hy3hhh5xdqcsz0lx8j18zbj88kh5ik4wyi5d3a5sfy2hx70in2";
   };
 
-  postPatch = ''
-    sed -i "/--cov/d" pytest.ini
-  '';
-
-  nativeCheckInputs = [ pytestCheckHook ];
+  nativeCheckInputs = [
+    pytestCheckHook
+    pytest-cov-stub
+  ];
 
   pytestFlagsArray = [ "tests" ];