diff --git a/weixin-java-miniapp/src/main/java/cn/binarywang/wx/miniapp/bean/Watermark.java b/weixin-java-miniapp/src/main/java/cn/binarywang/wx/miniapp/bean/Watermark.java
new file mode 100644
index 000000000..4747c77f8
--- /dev/null
+++ b/weixin-java-miniapp/src/main/java/cn/binarywang/wx/miniapp/bean/Watermark.java
@@ -0,0 +1,25 @@
+package cn.binarywang.wx.miniapp.bean;
+
+import lombok.AllArgsConstructor;
+import lombok.Data;
+import lombok.NoArgsConstructor;
+import lombok.experimental.Accessors;
+
+import java.io.Serializable;
+
+/**
+ * 数据水印.
+ *
+ * @author <a href="https://github.com/binarywang">Binary Wang</a>
+ * @date 2020-05-25
+ */
+@Data
+@AllArgsConstructor
+@NoArgsConstructor
+@Accessors(chain = true)
+public class Watermark implements Serializable {
+  private static final long serialVersionUID = 2375642809946928650L;
+
+  private String timestamp;
+  private String appid;
+}
diff --git a/weixin-java-miniapp/src/main/java/cn/binarywang/wx/miniapp/bean/WxMaPhoneNumberInfo.java b/weixin-java-miniapp/src/main/java/cn/binarywang/wx/miniapp/bean/WxMaPhoneNumberInfo.java
index 398838eb8..149ecbebe 100644
--- a/weixin-java-miniapp/src/main/java/cn/binarywang/wx/miniapp/bean/WxMaPhoneNumberInfo.java
+++ b/weixin-java-miniapp/src/main/java/cn/binarywang/wx/miniapp/bean/WxMaPhoneNumberInfo.java
@@ -23,11 +23,4 @@ public class WxMaPhoneNumberInfo implements Serializable {
     return WxMaGsonBuilder.create().fromJson(json, WxMaPhoneNumberInfo.class);
   }
 
-  @Data
-  public static class Watermark implements Serializable {
-    private static final long serialVersionUID = 2375642809946928650L;
-    
-    private String timestamp;
-    private String appid;
-  }
 }
diff --git a/weixin-java-miniapp/src/main/java/cn/binarywang/wx/miniapp/bean/WxMaUserInfo.java b/weixin-java-miniapp/src/main/java/cn/binarywang/wx/miniapp/bean/WxMaUserInfo.java
index 8b0ed8fe6..368fa772c 100644
--- a/weixin-java-miniapp/src/main/java/cn/binarywang/wx/miniapp/bean/WxMaUserInfo.java
+++ b/weixin-java-miniapp/src/main/java/cn/binarywang/wx/miniapp/bean/WxMaUserInfo.java
@@ -27,9 +27,4 @@ public class WxMaUserInfo implements Serializable {
     return WxMaGsonBuilder.create().fromJson(json, WxMaUserInfo.class);
   }
 
-  @Data
-  public static class Watermark {
-    private String timestamp;
-    private String appid;
-  }
 }