diff --git a/README.md b/README.md
index 6a69da0a..8a69b8cf 100644
--- a/README.md
+++ b/README.md
@@ -24,7 +24,7 @@ compile 'com.arialyy.aria:Aria:2.4.4'
 ![多任务下载](https://github.com/AriaLyy/DownloadUtil/blob/v_2.0/img/download_img.gif)
 ![Dialog使用](https://github.com/AriaLyy/DownloadUtil/blob/v_2.0/img/dialog_use.gif "")
 
-## 性能展示
+## 性能
 ![性能展示](https://github.com/AriaLyy/DownloadUtil/blob/v_2.0/img/performance.png)
 
 ***
diff --git a/app/src/main/java/com/arialyy/simple/single_task/SingleTaskActivity.java b/app/src/main/java/com/arialyy/simple/single_task/SingleTaskActivity.java
index 9de01d3c..ba0fa003 100644
--- a/app/src/main/java/com/arialyy/simple/single_task/SingleTaskActivity.java
+++ b/app/src/main/java/com/arialyy/simple/single_task/SingleTaskActivity.java
@@ -55,8 +55,8 @@ public class SingleTaskActivity extends BaseActivity<ActivitySingleBinding> {
   private static final String DOWNLOAD_URL      =
       //"http://kotlinlang.org/docs/kotlin-docs.pdf";
       //"https://atom-installer.github.com/v1.13.0/AtomSetup.exe?s=1484074138&ext=.exe";
-      //"http://static.gaoshouyou.com/d/21/e8/61218d78d0e8b79df68dbc18dd484c97.apk";
-      "http://ox.konsung.net:5555/ksdc-web/download/downloadFile/?fileName=ksdc_1.0.2.apk&rRange=0-";
+      "http://static.gaoshouyou.com/d/22/94/822260b849944492caadd2983f9bb624.apk";
+      //"http://ox.konsung.net:5555/ksdc-web/download/downloadFile/?fileName=ksdc_1.0.2.apk&rRange=0-";
   @Bind(R.id.progressBar) HorizontalProgressBarWithNumber mPb;
   @Bind(R.id.start)       Button                          mStart;
   @Bind(R.id.stop)        Button                          mStop;
diff --git a/img/performance.png b/img/performance.png
index cc29de09..953b7a5e 100644
Binary files a/img/performance.png and b/img/performance.png differ