Index: aiohttp-3.13.3/tests/conftest.py
===================================================================
--- aiohttp-3.13.3.orig/tests/conftest.py
+++ aiohttp-3.13.3/tests/conftest.py
@@ -381,7 +381,7 @@ def unused_port_socket() -> Generator[so
         s.close()
 
 
-@pytest.fixture(params=["zlib", "zlib_ng.zlib_ng", "isal.isal_zlib"])
+@pytest.fixture(params=["zlib"])
 def parametrize_zlib_backend(
     request: pytest.FixtureRequest,
 ) -> Generator[None, None, None]: