diff --git a/package.json b/package.json
index 73611ad2..f6f94925 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "wechatpay-axios-plugin",
-  "version": "0.8.6",
+  "version": "0.8.7",
   "description": "微信支付APIv2及v3 NodeJS SDK，支持CLI模式请求OpenAPI，支持v3证书下载，v2付款码支付、企业付款、退款，企业微信-企业支付-企业红包/向员工付款，v2&v3 Native支付、扫码支付、H5支付、JSAPI/小程序支付、合单支付...",
   "main": "index.js",
   "typings": "index.d.ts",
@@ -52,7 +52,7 @@
   "license": "MIT",
   "dependencies": {
     "axios": "^0.21.2",
-    "xml2js": "^0.4.23"
+    "xml2js": "^0.5.0"
   },
   "peerDependencies": {
     "yargs": "^17.1.1"
@@ -60,7 +60,7 @@
   "devDependencies": {
     "@babel/core": "^7.14.6",
     "@babel/eslint-parser": "^7.14.7",
-    "@types/node": "^16.7.10",
+    "@types/node": ">= 16.7.10",
     "eslint": "^7.29.0",
     "eslint-config-airbnb-base": "^14.2.1",
     "eslint-plugin-import": "^2.23.4",
diff --git a/tests/lib/transformer.test.js b/tests/lib/transformer.test.js
index a9b039aa..9cd97680 100644
--- a/tests/lib/transformer.test.js
+++ b/tests/lib/transformer.test.js
@@ -172,7 +172,9 @@ describe('lib/transformer', () => {
 
     it('method `toObject` should returns `{mch_id: \'10000100\'}` while a `<xml><mch_id>10000100</mch_id></xml>` string passed in', () => {
       /* eslint-disable-next-line camelcase */
-      should(Transformer.toObject('<xml><mch_id>10000100</mch_id></xml>')).be.eql({ mch_id: '10000100' });
+      should(Transformer.toObject('<xml><mch_id>10000100</mch_id></xml>')).be.eql(Object.assign(Object.create(null), { mch_id: '10000100' }));
+      /* eslint-disable-next-line camelcase */
+      should(JSON.stringify(Transformer.toObject('<xml><mch_id>10000100</mch_id></xml>'))).be.eql(JSON.stringify({ mch_id: '10000100' }));
     });
 
     it('method `toObject` should returns `null` while a `Buffer.from([])` passed in', () => {