diff --git a/tests/replication/storage/test_events.py b/tests/replication/storage/test_events.py
index 28bfb8b8ea..b0e3cc8db4 100644
--- a/tests/replication/storage/test_events.py
+++ b/tests/replication/storage/test_events.py
@@ -102,7 +102,6 @@ class EventsWorkerStoreTestCase(BaseWorkerStoreTestCase):
         msg_dict = msg.get_dict()
         msg_dict["content"] = {}
         msg_dict["unsigned"]["redacted_by"] = redaction.event_id
-        msg_dict["unsigned"]["redacted_because"] = redaction
         redacted = make_event_from_dict(
             msg_dict, internal_metadata_dict=msg.internal_metadata.get_dict()
         )
@@ -126,7 +125,6 @@ class EventsWorkerStoreTestCase(BaseWorkerStoreTestCase):
         msg_dict = msg.get_dict()
         msg_dict["content"] = {}
         msg_dict["unsigned"]["redacted_by"] = redaction.event_id
-        msg_dict["unsigned"]["redacted_because"] = redaction
         redacted = make_event_from_dict(
             msg_dict, internal_metadata_dict=msg.internal_metadata.get_dict()
         )