diff --git a/hc/api/management/commands/prunenotifications.py b/hc/api/management/commands/prunenotifications.py
index 82cc86dc..dcdcf40b 100644
--- a/hc/api/management/commands/prunenotifications.py
+++ b/hc/api/management/commands/prunenotifications.py
@@ -10,7 +10,7 @@ class Command(BaseCommand):
     def handle(self, *args, **options):
         total = 0
 
-        q = Check.objects.filter(n_pings__gt=0)
+        q = Check.objects.filter(n_pings__gt=100)
         q = q.annotate(min_ping_date=Min("ping__created"))
         for check in q:
             qq = Notification.objects.filter(owner_id=check.id,