diff --git a/tests/sentry/grouping/test_benchmark.py b/tests/sentry/grouping/test_benchmark.py
index 80ed85fab0ed44..29752700ecc959 100644
--- a/tests/sentry/grouping/test_benchmark.py
+++ b/tests/sentry/grouping/test_benchmark.py
@@ -34,6 +34,6 @@ def run_configuration(grouping_input: GroupingInput, config_name: str) -> None:
     event = grouping_input.create_event(config_name)
 
     # This ensures we won't try to touch the DB when getting event hashes
-    event.project = None
+    event.project = None  # type: ignore[assignment]
 
     event.get_hashes()
diff --git a/tests/sentry/grouping/test_variants.py b/tests/sentry/grouping/test_variants.py
index 13149501779d7d..a64d3ec1956f19 100644
--- a/tests/sentry/grouping/test_variants.py
+++ b/tests/sentry/grouping/test_variants.py
@@ -67,7 +67,7 @@ def test_event_hash_variant(
     event = grouping_input.create_event(config_name)
 
     # This ensures we won't try to touch the DB when getting event variants
-    event.project = None
+    event.project = None  # type: ignore[assignment]
 
     _assert_and_snapshot_results(event, config_name, grouping_input.filename, insta_snapshot)