diff --git a/src/migration/1663178807737-cascadeauthorization.ts b/src/migration/1663178807737-cascadeauthorization.ts
new file mode 100644
index 0000000..b340536
--- /dev/null
+++ b/src/migration/1663178807737-cascadeauthorization.ts
@@ -0,0 +1,35 @@
+import { MigrationInterface, QueryRunner } from 'typeorm';
+
+export class cascadeauthorization1663178807737 implements MigrationInterface {
+  name = 'cascadeauthorization1663178807737';
+
+  public async up(queryRunner: QueryRunner): Promise<void> {
+    await queryRunner.query(
+      `ALTER TABLE \`o_auth2_client_authorization\` DROP FOREIGN KEY \`FK_8227110f58510b7233f3db90cfb\``,
+    );
+    await queryRunner.query(
+      `ALTER TABLE \`o_auth2_client_authorization\` ADD CONSTRAINT \`FK_8227110f58510b7233f3db90cfb\` FOREIGN KEY (\`userId\`) REFERENCES \`user\`(\`id\`) ON DELETE CASCADE ON UPDATE NO ACTION`,
+    );
+    await queryRunner.query(
+      `ALTER TABLE \`o_auth2_client_authorization\` DROP FOREIGN KEY \`FK_9ca9ebb654e7ce71954d5fdb281\``,
+    );
+    await queryRunner.query(
+      `ALTER TABLE \`o_auth2_client_authorization\` ADD CONSTRAINT \`FK_9ca9ebb654e7ce71954d5fdb281\` FOREIGN KEY (\`clientId\`) REFERENCES \`o_auth2_client\`(\`id\`) ON DELETE CASCADE ON UPDATE NO ACTION`,
+    );
+  }
+
+  public async down(queryRunner: QueryRunner): Promise<void> {
+    await queryRunner.query(
+      `ALTER TABLE \`o_auth2_client_authorization\` DROP FOREIGN KEY \`FK_8227110f58510b7233f3db90cfb\``,
+    );
+    await queryRunner.query(
+      `ALTER TABLE \`o_auth2_client_authorization\` DROP FOREIGN KEY \`FK_9ca9ebb654e7ce71954d5fdb281\``,
+    );
+    await queryRunner.query(
+      `ALTER TABLE \`o_auth2_client_authorization\` ADD CONSTRAINT \`FK_8227110f58510b7233f3db90cfb\` FOREIGN KEY (\`userId\`) REFERENCES \`user\`(\`id\`) ON DELETE NO ACTION ON UPDATE NO ACTION`,
+    );
+    await queryRunner.query(
+      `ALTER TABLE \`o_auth2_client_authorization\` ADD CONSTRAINT \`FK_9ca9ebb654e7ce71954d5fdb281\` FOREIGN KEY (\`clientId\`) REFERENCES \`o_auth2_client\`(\`id\`) ON DELETE NO ACTION ON UPDATE NO ACTION`,
+    );
+  }
+}
diff --git a/src/modules/objects/oauth2-client/oauth2-client-authorization.entity.ts b/src/modules/objects/oauth2-client/oauth2-client-authorization.entity.ts
index c6515cf..d054373 100644
--- a/src/modules/objects/oauth2-client/oauth2-client-authorization.entity.ts
+++ b/src/modules/objects/oauth2-client/oauth2-client-authorization.entity.ts
@@ -22,9 +22,9 @@ export class OAuth2ClientAuthorization {
   @CreateDateColumn()
   public created_at: Date;
 
-  @ManyToOne(() => OAuth2Client)
+  @ManyToOne(() => OAuth2Client, { onDelete: 'CASCADE' })
   public client: OAuth2Client;
 
-  @ManyToOne(() => User)
+  @ManyToOne(() => User, { onDelete: 'CASCADE' })
   public user: User;
 }