diff --git a/src/main/resources/db/80/V1000_77__ongeki_fk.sql b/src/main/resources/db/80/V1000_77__ongeki_fk.sql
new file mode 100644
index 00000000..394a1cf5
--- /dev/null
+++ b/src/main/resources/db/80/V1000_77__ongeki_fk.sql
@@ -0,0 +1,10 @@
+alter table ongeki_user_event_map drop foreign key FKU_ONGEKI_USER_EVENT_MAP;
+alter table ongeki_user_skin drop foreign key FKU_ONGEKI_USER_SKIN;
+
+alter table ongeki_user_event_map add constraint FKU_ONGEKI_USER_EVENT_MAP
+    foreign key (user_id) references ongeki_user_data (id)
+        on delete cascade on update cascade;
+
+alter table ongeki_user_skin add constraint FKU_ONGEKI_USER_SKIN
+    foreign key (user_id) references ongeki_user_data (id)
+        on delete cascade on update cascade;
\ No newline at end of file