diff --git a/Course/README.md b/Course/README.md
index c7546a0..b9fd97f 100644
--- a/Course/README.md
+++ b/Course/README.md
@@ -3,6 +3,6 @@
 
 <p align="center">
 <a href="https://github.com/GcsSloop/AndroidNote/blob/master/Course/HowToUsePlantUMLInAS.md" target="_blank"><img src="http://ww2.sinaimg.cn/large/005Xtdi2gw1f6h5jfxzvaj30rs0dwgot.jpg" width=285 /></a>
-<a href="https://github.com/GcsSloop/AndroidNote/blob/master/Course/HowToUsePlantUMLInAS(Mac).md" target="_blank"><img src="http://ww3.sinaimg.cn/large/005Xtdi2gw1f6h5k3m8wrj30rs0dwq66.jpg" width=285 /></a>
+<a href="https://github.com/GcsSloop/AndroidNote/blob/master/Course/HowToUsePlantUMLInAS%5BMac%5D.md" target="_blank"><img src="http://ww3.sinaimg.cn/large/005Xtdi2gw1f6h5k3m8wrj30rs0dwq66.jpg" width=285 /></a>
 <a href="https://github.com/GcsSloop/AndroidNote/blob/master/Course/ReleaseLibraryByJitPack.md" target="_blank"><img src="http://ww2.sinaimg.cn/large/005Xtdi2gw1f6h5lbuiraj30rs0dwtbm.jpg" width=285 /></a>
 </p>