diff --git a/docker-compose.prod.yml b/docker-compose.prod.yml
index d2789aa..45a0255 100644
--- a/docker-compose.prod.yml
+++ b/docker-compose.prod.yml
@@ -16,7 +16,7 @@ services:
       - mongo_data:/data/db
 
   dimension-server:
-    image: dim-server:v1.3.11
+    image: dim-server:v1.3.12
     restart: unless-stopped
     depends_on:
       - mongodb
diff --git a/server/src/routes/wxmsg.js b/server/src/routes/wxmsg.js
index 3c65050..962837f 100644
--- a/server/src/routes/wxmsg.js
+++ b/server/src/routes/wxmsg.js
@@ -38,8 +38,13 @@ module.exports = function registerWxMsgRoutes(app) {
 
   app.post('/api/wx/msg', async (req, res) => {
     try {
-      const raw = typeof req.body === 'string' ? req.body : JSON.stringify(req.body || {})
-      const fields = xmlFields(String(raw))
+      // 数据格式推荐 JSON：express.json 已解析为对象；选 XML 时是字符串
+      let fields = {}
+      if (req.body && typeof req.body === 'object') {
+        fields = req.body
+      } else {
+        fields = xmlFields(String(req.body || ''))
+      }
       const event = fields.Event || fields.event || ''
       console.log('[wx-msg] 收到推送 Event=' + event, JSON.stringify(fields).slice(0, 500))
       // TODO(vpay接入)：按事件分发改写用户星尘余额/发货状态