diff --git a/package.json b/package.json
index d1cdec8..8104c2b 100755
--- a/package.json
+++ b/package.json
@@ -15,7 +15,7 @@
     "lodash": "^4.17.21",
     "md5": "^2.3.0",
     "midwayjs-cool-alipay": "^1.0.3",
-    "midwayjs-cool-core": "^3.2.2",
+    "midwayjs-cool-core": "^3.2.5",
     "midwayjs-cool-oss": "^1.0.12",
     "midwayjs-cool-queue": "^1.0.7",
     "midwayjs-cool-redis": "^1.1.6",
diff --git a/src/app/modules/demo/service/goods.ts b/src/app/modules/demo/service/goods.ts
index 7537bba..c2f826d 100644
--- a/src/app/modules/demo/service/goods.ts
+++ b/src/app/modules/demo/service/goods.ts
@@ -1,7 +1,7 @@
 import { Inject, Provide } from '@midwayjs/decorator';
-import { BaseService, Cache } from 'midwayjs-cool-core';
+import { BaseService, Cache, CoolTransaction } from 'midwayjs-cool-core';
 import { InjectEntityModel } from '@midwayjs/orm';
-import { Repository } from 'typeorm';
+import { Repository, QueryRunner } from 'typeorm';
 import { DemoAppGoodsEntity } from '../entity/goods';
 import { ICoolCache } from 'midwayjs-cool-core';
 
@@ -23,4 +23,19 @@ export class DemoGoodsService extends BaseService {
   async all() {
     return this.demoAppGoodsEntity.find();
   }
+
+  /**
+   * 事务
+   * @param params
+   * @param queryRunner
+   */
+  @CoolTransaction({ isolation: 'SERIALIZABLE' })
+  async testTransaction(params: any, queryRunner?: QueryRunner) {
+    await queryRunner.manager.insert<DemoAppGoodsEntity>(DemoAppGoodsEntity, {
+      title: '这是个商品',
+      pic: '商品图',
+      price: 99.0,
+      type: 1,
+    });
+  }
 }