diff --git a/app-updater/src/main/java/com/king/app/updater/UpdateConfig.java b/app-updater/src/main/java/com/king/app/updater/UpdateConfig.java
index 42a1737..66cfecd 100644
--- a/app-updater/src/main/java/com/king/app/updater/UpdateConfig.java
+++ b/app-updater/src/main/java/com/king/app/updater/UpdateConfig.java
@@ -96,6 +96,9 @@ public class UpdateConfig implements Parcelable {
      */
     private boolean isDeleteCancelFile = true;
 
+    /**
+     * APK文件的MD5
+     */
     private String apkMD5;