diff --git a/demo/src/main/java/com/liulishuo/filedownloader/demo/Constant.java b/demo/src/main/java/com/liulishuo/filedownloader/demo/Constant.java
index <HASH>..<HASH> 100644
--- a/demo/src/main/java/com/liulishuo/filedownloader/demo/Constant.java
+++ b/demo/src/main/java/com/liulishuo/filedownloader/demo/Constant.java
@@ -9,8 +9,8 @@ public interface Constant {
             "http://www.httpwatch.com/httpgallery/chunked/chunkedimage.aspx?0.04400023248109086",
     };
 
-    String LIULISHUO_APK_URL = "http://cdn.llsapp.com/android/LLS-v3.6.2-584-20160808-111006.apk";
-    String LIULISHUO_CONTENT_DISPOSITION_FILENAME = "LLS-v3.6.2-584-20160808-111006.apk";
+    String LIULISHUO_APK_URL = "http://cdn.llsapp.com/android/LLS-v4.0-595-20160908-143200.apk";
+    String LIULISHUO_CONTENT_DISPOSITION_FILENAME = "LLS-v4.0-595-20160908-143200.apk";
 
     String[] BIG_FILE_URLS = {
             // 5m
demo(Urls): replace the Urls for the single task test