diff --git a/weixin-java-mp/src/main/java/me/chanjar/weixin/mp/bean/material/WxMpMaterialNewsBatchGetResult.java b/weixin-java-mp/src/main/java/me/chanjar/weixin/mp/bean/material/WxMpMaterialNewsBatchGetResult.java
index 894709ac8..4c28d028b 100644
--- a/weixin-java-mp/src/main/java/me/chanjar/weixin/mp/bean/material/WxMpMaterialNewsBatchGetResult.java
+++ b/weixin-java-mp/src/main/java/me/chanjar/weixin/mp/bean/material/WxMpMaterialNewsBatchGetResult.java
@@ -1,12 +1,12 @@
 package me.chanjar.weixin.mp.bean.material;
 
+import lombok.Data;
+import me.chanjar.weixin.mp.util.json.WxMpGsonBuilder;
+
 import java.io.Serializable;
 import java.util.Date;
 import java.util.List;
 
-import lombok.Data;
-import me.chanjar.weixin.mp.util.json.WxMpGsonBuilder;
-
 @Data
 public class WxMpMaterialNewsBatchGetResult implements Serializable {
   private static final long serialVersionUID = -1617952797921001666L;
@@ -21,7 +21,9 @@ public class WxMpMaterialNewsBatchGetResult implements Serializable {
   }
 
   @Data
-  public static class WxMaterialNewsBatchGetNewsItem {
+  public static class WxMaterialNewsBatchGetNewsItem implements Serializable {
+    private static final long serialVersionUID = -5227864606579602345L;
+
     private String mediaId;
     private Date updateTime;
     private WxMpMaterialNews content;
diff --git a/weixin-java-open/src/main/java/me/chanjar/weixin/open/bean/message/WxOpenMaSubmitAuditMessage.java b/weixin-java-open/src/main/java/me/chanjar/weixin/open/bean/message/WxOpenMaSubmitAuditMessage.java
index febc1f883..d74f3d8d5 100644
--- a/weixin-java-open/src/main/java/me/chanjar/weixin/open/bean/message/WxOpenMaSubmitAuditMessage.java
+++ b/weixin-java-open/src/main/java/me/chanjar/weixin/open/bean/message/WxOpenMaSubmitAuditMessage.java
@@ -17,7 +17,7 @@ import java.util.List;
 @Data
 public class WxOpenMaSubmitAuditMessage implements Serializable {
   private static final long serialVersionUID = 8881103449144288927L;
-  
+
   /**
    * 提交审核项的一个列表（至少填写1项，至多填写5项）
    */