diff --git a/tests/test_scheduling_utils.py b/tests/test_scheduling_utils.py
index 08db4c7a9170843d3ea5ccd29ab9dafa039b6a56..6b31a0b21bc8b04b5d4e723352d6a7e281a8fbac 100644
--- a/tests/test_scheduling_utils.py
+++ b/tests/test_scheduling_utils.py
@@ -29,7 +29,7 @@ from aura_engine.scheduling.utils import M3UPlaylistProcessor, TimetableRenderer
 class MockedScheduler:
     timetable: TimetableService
 
-    def __init__(self, timetable: [Timeslot]):
+    def __init__(self, timetable: list[Timeslot]):
         self.timetable = timetable
 
     def get_timetable(self) -> TimetableService: