diff --git a/weixin-java-pay/src/main/java/com/github/binarywang/wxpay/bean/notify/WxPayOrderNotifyResult.java b/weixin-java-pay/src/main/java/com/github/binarywang/wxpay/bean/notify/WxPayOrderNotifyResult.java
index 857859ed4..006fe1d7c 100644
--- a/weixin-java-pay/src/main/java/com/github/binarywang/wxpay/bean/notify/WxPayOrderNotifyResult.java
+++ b/weixin-java-pay/src/main/java/com/github/binarywang/wxpay/bean/notify/WxPayOrderNotifyResult.java
@@ -271,6 +271,18 @@ public class WxPayOrderNotifyResult extends BaseWxPayResult {
   @XStreamAlias("time_end")
   private String timeEnd;
 
+  /**
+   * <pre>
+   * 字段名：接口版本号.
+   * 变量名：version
+   * 类型：String(32)
+   * 示例值：1.0
+   * 更多信息，详见文档：https://pay.weixin.qq.com/wiki/doc/api/danpin.php?chapter=9_101&index=1
+   * </pre>
+   */
+  @XStreamAlias("version")
+  private String version;
+
   public static WxPayOrderNotifyResult fromXML(String xmlString) {
     XStream xstream = XStreamInitializer.getInstance();
     xstream.processAnnotations(WxPayOrderNotifyResult.class);