diff --git a/tests/replication/test_multi_media_repo.py b/tests/replication/test_multi_media_repo.py
index 6c229c3cbe..be95c43ff3 100644
--- a/tests/replication/test_multi_media_repo.py
+++ b/tests/replication/test_multi_media_repo.py
@@ -40,7 +40,6 @@ from tests.http import (
 from tests.replication._base import BaseMultiWorkerStreamTestCase
 from tests.server import FakeChannel, FakeTransport, make_request
 from tests.test_utils import SMALL_PNG
-from tests.unittest import override_config
 
 logger = logging.getLogger(__name__)
 
diff --git a/tests/rest/admin/test_media.py b/tests/rest/admin/test_media.py
index 256128505a..b97545431e 100644
--- a/tests/rest/admin/test_media.py
+++ b/tests/rest/admin/test_media.py
@@ -36,7 +36,6 @@ from synapse.util import Clock
 
 from tests import unittest
 from tests.test_utils import SMALL_CMYK_JPEG, SMALL_PNG
-from tests.unittest import override_config
 
 VALID_TIMESTAMP = 1609459200000  # 2021-01-01 in milliseconds
 INVALID_TIMESTAMP_IN_S = 1893456000  # 2030-01-01 in seconds
diff --git a/tests/rest/media/test_url_preview.py b/tests/rest/media/test_url_preview.py
index f8b97cf3d4..4a881fde76 100644
--- a/tests/rest/media/test_url_preview.py
+++ b/tests/rest/media/test_url_preview.py
@@ -42,7 +42,6 @@ from synapse.util.stringutils import parse_and_validate_mxc_uri
 from tests import unittest
 from tests.server import FakeTransport
 from tests.test_utils import SMALL_PNG
-from tests.unittest import override_config
 
 try:
     import lxml