diff --git a/apps/edr-passenger-api/prisma/seed.ts b/apps/edr-passenger-api/prisma/seed.ts
index 12b872a0e..303fe97ed 100644
--- a/apps/edr-passenger-api/prisma/seed.ts
+++ b/apps/edr-passenger-api/prisma/seed.ts
@@ -164,6 +164,15 @@ async function seedSchedules(trains: any[], stations: any[]) {
   })).map((s) => s.id);
 
   if (existingScheduleIds.length > 0) {
+    // Delete in correct order to avoid foreign key constraints
+    await prisma.bookingSeat.deleteMany({ 
+      where: { 
+        booking: { 
+          scheduleId: { in: existingScheduleIds } 
+        } 
+      } 
+    });
+    await prisma.booking.deleteMany({ where: { scheduleId: { in: existingScheduleIds } } });
     await prisma.fareRule.deleteMany({ where: { tripId: { in: existingScheduleIds } } });
     await prisma.tripStopTime.deleteMany({ where: { scheduleId: { in: existingScheduleIds } } });
     await prisma.coachAssignment.deleteMany({ where: { scheduleId: { in: existingScheduleIds } } });