diff --git a/datascience/src/pipeline/flows_config.py b/datascience/src/pipeline/flows_config.py
index 652bbe0292..cd00643628 100644
--- a/datascience/src/pipeline/flows_config.py
+++ b/datascience/src/pipeline/flows_config.py
@@ -147,7 +147,10 @@
     ]
 )
 logbook.flow.schedule = CronSchedule("0,5,10,15,20,25,30,35,40,45,50,55 * * * *")
-missing_dep_alerts.flow.schedule = CronSchedule("1,16,31,46 * * * *")
+
+# For details on missing DEP alerts timing and risks of bad syncing with other data,
+# see https://github.com/MTES-MCT/monitorfish/pull/3834#issue-2637538251
+missing_dep_alerts.flow.schedule = CronSchedule("5,25,45 * * * *")
 missing_far_alerts.flow.schedule = Schedule(
     clocks=[
         clocks.CronClock(