diff --git a/membershipworks/models.py b/membershipworks/models.py
index 80941fc..4847113 100644
--- a/membershipworks/models.py
+++ b/membershipworks/models.py
@@ -762,7 +762,7 @@ class EventTicketType(DBView):
     objects = EventTicketTypeManager.from_queryset(EventTicketTypeQuerySet)()
 
     event = models.ForeignKey(
-        EventExt, on_delete=models.CASCADE, related_name="ticket_types"
+        EventExt, on_delete=models.DO_NOTHING, related_name="ticket_types"
     )
     label = models.TextField()
     restrict_to = models.TextField(null=True, blank=True)
@@ -807,7 +807,7 @@ class EventTicketType(DBView):
 
 class EventAttendeeStats(DBView):
     event = models.ForeignKey(
-        EventExt, on_delete=models.CASCADE, related_name="attendee_stats"
+        EventExt, on_delete=models.DO_NOTHING, related_name="attendee_stats"
     )
     gross_revenue = models.FloatField()
 
@@ -827,7 +827,7 @@ class EventAttendeeStats(DBView):
 
 class EventAttendee(DBView):
     event = models.ForeignKey(
-        EventExt, on_delete=models.CASCADE, related_name="attendees"
+        EventExt, on_delete=models.DO_NOTHING, related_name="attendees"
     )
     uid = models.ForeignKey(Member, on_delete=models.DO_NOTHING)
     name = models.CharField(max_length=256)