diff --git a/h_periodic/lms_beat.py b/h_periodic/lms_beat.py
index 90d241c..226d2de 100644
--- a/h_periodic/lms_beat.py
+++ b/h_periodic/lms_beat.py
@@ -43,7 +43,7 @@
         },
         "schedule_fetching_rosters": {
             "task": "lms.tasks.roster.schedule_fetching_rosters",
-            "schedule": crontab(hour=14, minute=5),
+            "schedule": timedelta(hours=1),
         },
         "delete_expired_task_done_rows": {
             "task": "lms.tasks.task_done.delete_expired_rows",