diff --git a/tests/test_benchmarks_client.py b/tests/test_benchmarks_client.py
index aa3536be820..ef2a4d88c92 100644
--- a/tests/test_benchmarks_client.py
+++ b/tests/test_benchmarks_client.py
@@ -2,6 +2,7 @@
 
 import asyncio
 
+import pytest
 from pytest_codspeed import BenchmarkFixture
 
 from aiohttp import hdrs, web
@@ -178,6 +179,7 @@ def _run() -> None:
         loop.run_until_complete(run_client_benchmark())
 
 
+@pytest.mark.usefixtures("parametrize_zlib_backend")
 def test_get_request_with_251308_compressed_chunked_payload(
     loop: asyncio.AbstractEventLoop,
     aiohttp_client: AiohttpClient,
diff --git a/tests/test_benchmarks_http_websocket.py b/tests/test_benchmarks_http_websocket.py
index f39a4015df8..728921b53eb 100644
--- a/tests/test_benchmarks_http_websocket.py
+++ b/tests/test_benchmarks_http_websocket.py
@@ -3,6 +3,7 @@
 import asyncio
 from typing import Union
 
+import pytest
 from pytest_codspeed import BenchmarkFixture
 
 from aiohttp._websocket.helpers import MSG_SIZE, PACK_LEN3
@@ -117,6 +118,7 @@ def _run() -> None:
         loop.run_until_complete(_send_one_hundred_websocket_text_messages())
 
 
+@pytest.mark.usefixtures("parametrize_zlib_backend")
 def test_send_one_hundred_websocket_compressed_messages(
     loop: asyncio.AbstractEventLoop, benchmark: BenchmarkFixture
 ) -> None: