diff --git a/prisma/migrations/20241001084106_update_relation_constraints/migration.sql b/prisma/migrations/20241001084106_update_relation_constraints/migration.sql
new file mode 100644
index 0000000..3cf8cd7
--- /dev/null
+++ b/prisma/migrations/20241001084106_update_relation_constraints/migration.sql
@@ -0,0 +1,11 @@
+-- DropForeignKey
+ALTER TABLE "QuotationProductServiceList" DROP CONSTRAINT "QuotationProductServiceList_quotationId_fkey";
+
+-- DropForeignKey
+ALTER TABLE "QuotationWorker" DROP CONSTRAINT "QuotationWorker_quotationId_fkey";
+
+-- AddForeignKey
+ALTER TABLE "QuotationWorker" ADD CONSTRAINT "QuotationWorker_quotationId_fkey" FOREIGN KEY ("quotationId") REFERENCES "Quotation"("id") ON DELETE CASCADE ON UPDATE CASCADE;
+
+-- AddForeignKey
+ALTER TABLE "QuotationProductServiceList" ADD CONSTRAINT "QuotationProductServiceList_quotationId_fkey" FOREIGN KEY ("quotationId") REFERENCES "Quotation"("id") ON DELETE CASCADE ON UPDATE CASCADE;
diff --git a/prisma/schema.prisma b/prisma/schema.prisma
index 5437f0a..63a588e 100644
--- a/prisma/schema.prisma
+++ b/prisma/schema.prisma
@@ -1081,14 +1081,14 @@ model QuotationWorker {
   code        String
   employee    Employee  @relation(fields: [employeeId], references: [id])
   employeeId  String
-  quotation   Quotation @relation(fields: [quotationId], references: [id])
+  quotation   Quotation @relation(fields: [quotationId], references: [id], onDelete: Cascade)
   quotationId String
 }
 
 model QuotationProductServiceList {
   id          String    @id @default(cuid())
   quotationId String
-  quotation   Quotation @relation(fields: [quotationId], references: [id])
+  quotation   Quotation @relation(fields: [quotationId], references: [id], onDelete: Cascade)
 
   order Int