diff -Nru aiohttp-3.9.3.orig/tests/test_client_session.py aiohttp-3.9.3/tests/test_client_session.py
--- aiohttp-3.9.3.orig/tests/test_client_session.py	2024-01-29 20:32:25.000000000 +0100
+++ aiohttp-3.9.3/tests/test_client_session.py	2024-01-30 11:20:09.652810999 +0100
@@ -2,6 +2,7 @@
 import contextlib
 import gc
 import io
+import re
 import json
 from http.cookies import SimpleCookie
 from typing import Any, List
@@ -9,7 +10,6 @@
 
 import pytest
 from multidict import CIMultiDict, MultiDict
-from re_assert import Matches
 from yarl import URL
 
 import aiohttp
@@ -320,8 +320,8 @@
 
             loop.run_until_complete(make_sess())
         assert (
-            Matches("Session and connector has to use same event loop")
-            == str(ctx.value).strip()
+            re.match("Session and connector has to use same event loop",
+                     str(ctx.value).strip())
         )
         another_loop.run_until_complete(connector.close())
 
diff -Nru aiohttp-3.9.3.orig/tests/test_streams.py aiohttp-3.9.3/tests/test_streams.py
--- aiohttp-3.9.3.orig/tests/test_streams.py	2024-01-29 20:32:25.000000000 +0100
+++ aiohttp-3.9.3/tests/test_streams.py	2024-01-30 11:20:09.652810999 +0100
@@ -3,13 +3,13 @@
 import abc
 import asyncio
 import gc
+import re
 import types
 from collections import defaultdict
 from itertools import groupby
 from unittest import mock
 
 import pytest
-from re_assert import Matches
 
 from aiohttp import streams
 
@@ -1102,7 +1102,7 @@
         loop = asyncio.get_event_loop()
         stream = self._make_one()
         stream._waiter = loop.create_future()
-        assert Matches(r"<StreamReader w=<Future pending[\S ]*>>") == repr(stream)
+        assert re.match(r"<StreamReader w=<Future pending[\S ]*>>", repr(stream))
         stream._waiter.set_result(None)
         await stream._waiter
         stream._waiter = None
diff -Nru aiohttp-3.9.3.orig/tests/test_urldispatch.py aiohttp-3.9.3/tests/test_urldispatch.py
--- aiohttp-3.9.3.orig/tests/test_urldispatch.py	2024-01-29 20:32:25.000000000 +0100
+++ aiohttp-3.9.3/tests/test_urldispatch.py	2024-01-30 11:21:46.656743543 +0100
@@ -4,7 +4,6 @@
 from urllib.parse import unquote
 
 import pytest
-from re_assert import Matches
 from yarl import URL
 
 import aiohttp
@@ -312,7 +311,7 @@
     regexp = "Duplicate 'name', already handled by"
     with pytest.raises(ValueError) as ctx:
         router.add_route("GET", "/get_other", handler2, name="name")
-    assert Matches(regexp) == str(ctx.value)
+    assert re.match(regexp, str(ctx.value))
 
 
 def test_route_plain(router) -> None:
@@ -502,7 +501,7 @@
 
 def test_static_repr(router) -> None:
     router.add_static("/get", pathlib.Path(aiohttp.__file__).parent, name="name")
-    assert Matches(r"<StaticResource 'name' /get") == repr(router["name"])
+    assert re.match(r"<StaticResource 'name' /get", repr(router["name"]))
 
 
 def test_static_adds_slash(router) -> None:
@@ -624,7 +623,7 @@
     req = make_mocked_request("GET", "/get/john")
     match_info = await router.resolve(req)
     assert {"name": "john"} == match_info
-    assert Matches("<MatchInfo {'name': 'john'}: .+<Dynamic.+>>") == repr(match_info)
+    assert re.match("<MatchInfo {'name': 'john'}: .+<Dynamic.+>>", repr(match_info))
 
 
 async def test_match_info_with_plus(router) -> None:
diff -Nru aiohttp-3.9.3.orig/tests/test_web_response.py aiohttp-3.9.3/tests/test_web_response.py
--- aiohttp-3.9.3.orig/tests/test_web_response.py	2024-01-29 20:32:25.000000000 +0100
+++ aiohttp-3.9.3/tests/test_web_response.py	2024-01-30 11:20:09.656144352 +0100
@@ -2,13 +2,13 @@
 import datetime
 import gzip
 import json
+import re
 from concurrent.futures import ThreadPoolExecutor
 from unittest import mock
 
 import aiosignal
 import pytest
 from multidict import CIMultiDict, CIMultiDictProxy
-from re_assert import Matches
 
 from aiohttp import HttpVersion, HttpVersion10, HttpVersion11, hdrs
 from aiohttp.helpers import ETag
@@ -401,7 +401,9 @@
 
     with pytest.raises(RuntimeError) as ctx:
         await resp.prepare(req)
-    assert Matches("Using chunked encoding is forbidden for HTTP/1.0") == str(ctx.value)
+    assert re.match(
+        "Using chunked encoding is forbidden for HTTP/1.0", str(ctx.value)
+    )
 
 
 async def test_compression_no_accept() -> None:
@@ -843,7 +845,7 @@
         'Set-Cookie: name=("")?; '
         "expires=Thu, 01 Jan 1970 00:00:00 GMT; Max-Age=0; Path=/"
     )
-    assert Matches(expected) == str(resp.cookies)
+    assert re.match(expected, str(resp.cookies))
 
     resp.set_cookie("name", "value", domain="local.host")
     expected = "Set-Cookie: name=value; Domain=local.host; Path=/"
@@ -895,7 +897,7 @@
         'Set-Cookie: name=("")?; '
         "expires=Thu, 01 Jan 1970 00:00:00 GMT; Max-Age=0; Path=/"
     )
-    assert Matches(expected) == str(resp.cookies)
+    assert re.match(expected, str(resp.cookies))
 
 
 def test_cookie_set_after_del() -> None:
@@ -1136,14 +1138,13 @@
     await resp.write_eof()
     txt = buf.decode("utf8")
     assert (
-        Matches(
+        re.match(
             "HTTP/1.1 200 OK\r\n"
             "Content-Length: 0\r\n"
             "Content-Type: application/octet-stream\r\n"
             "Date: .+\r\n"
             "Server: .+\r\n\r\n"
-        )
-        == txt
+        , txt)
     )
 
 
@@ -1156,15 +1157,13 @@
 
     txt = buf.decode("utf8")
     assert (
-        Matches(
+        re.match(
             "HTTP/1.1 200 OK\r\n"
             "Content-Length: 4\r\n"
             "Content-Type: application/octet-stream\r\n"
             "Date: .+\r\n"
             "Server: .+\r\n\r\n"
-            "data"
-        )
-        == txt
+            "data", txt)
     )
 
 
@@ -1178,15 +1177,13 @@
 
     txt = buf.decode("utf8")
     assert (
-        Matches(
+        re.match(
             "HTTP/1.1 200 OK\r\n"
             "Content-Length: 0\r\n"
             "Set-Cookie: name=value\r\n"
             "Content-Type: application/octet-stream\r\n"
             "Date: .+\r\n"
-            "Server: .+\r\n\r\n"
-        )
-        == txt
+            "Server: .+\r\n\r\n", txt)
     )