diff --git a/src/backend/core/tests/rooms/test_api_rooms_participants_management.py b/src/backend/core/tests/rooms/test_api_rooms_participants_management.py
index 9f5cc6dd..795e6c7c 100644
--- a/src/backend/core/tests/rooms/test_api_rooms_participants_management.py
+++ b/src/backend/core/tests/rooms/test_api_rooms_participants_management.py
@@ -1021,4 +1021,5 @@ def test_remove_participant_not_found(mock_livekit_client):
 
     mock_livekit_client.aclose.assert_called_once()
 
+
 # todo - try to pass another scheme to make sure it defers to the next auth
diff --git a/src/backend/core/tests/rooms/test_api_rooms_rename_toggle.py b/src/backend/core/tests/rooms/test_api_rooms_rename_toggle.py
index 09900b3a..9ad7dbf0 100644
--- a/src/backend/core/tests/rooms/test_api_rooms_rename_toggle.py
+++ b/src/backend/core/tests/rooms/test_api_rooms_rename_toggle.py
@@ -622,4 +622,5 @@ def test_rename_participant_not_found(mock_livekit_client, room, token):
 
     mock_livekit_client.aclose.assert_called_once()
 
+
 # todo - try to pass another scheme to make sure it defers to the next auth
diff --git a/src/backend/core/tests/rooms/test_api_rooms_subtitle.py b/src/backend/core/tests/rooms/test_api_rooms_subtitle.py
index 3baf8172..fa88df7a 100644
--- a/src/backend/core/tests/rooms/test_api_rooms_subtitle.py
+++ b/src/backend/core/tests/rooms/test_api_rooms_subtitle.py
@@ -227,4 +227,5 @@ def test_start_subtitle_wrong_signature(settings, mock_livekit_token):
         "detail": "Invalid LiveKit token: Signature verification failed"
     }
 
+
 # todo - try to pass another scheme to make sure it defers to the next auth