diff --git a/backend/libs/database/admin.entity.ts b/backend/libs/database/admin.entity.ts
index 8aa1a0b..a8d2bc7 100644
--- a/backend/libs/database/admin.entity.ts
+++ b/backend/libs/database/admin.entity.ts
@@ -13,7 +13,7 @@ export class Admin {
     @Column({ nullable: false })
     public user_id!: string;
 
-    @OneToOne(() => User, (user) => user.id)
+    @OneToOne(() => User, (user) => user.id, { onDelete: 'CASCADE', onUpdate: 'CASCADE' })
     @JoinColumn({ name: 'user_id' })
     public user!: User;
 }
diff --git a/backend/libs/database/image.entity.ts b/backend/libs/database/image.entity.ts
index 376e811..14ca27d 100644
--- a/backend/libs/database/image.entity.ts
+++ b/backend/libs/database/image.entity.ts
@@ -1,4 +1,3 @@
-import { ApiProperty } from '@nestjs/swagger';
 import { Column, Entity, JoinColumn, ManyToOne, PrimaryColumn } from 'typeorm';
 import { Post } from './post.entity';
 
@@ -20,8 +19,7 @@ export class Image {
     @Column({ nullable: false })
     public post_uuid!: string;
 
-    @ApiProperty({})
-    @ManyToOne(() => Post, (post) => post.uuid)
+    @ManyToOne(() => Post, (post) => post.uuid, { onDelete: 'CASCADE' })
     @JoinColumn({ name: 'post_uuid' })
     public post!: Post;
 }