diff --git a/src/index.js b/src/index.js
index 3aba6ce..38332f8 100644
--- a/src/index.js
+++ b/src/index.js
@@ -315,6 +315,10 @@ export class WechatError extends Error {
     this.errCode = errCode
     this.errMsg = errMsg
 
-    Object.setPrototypeOf(this, WechatError.prototype)
+    if (typeof Object.setPrototypeOf === 'function') {
+      Object.setPrototypeOf(this, WechatError.prototype)
+    } else {
+      this.__proto__ = WechatError.prototype
+    }
   }
 }