diff --git a/upgrade.md b/upgrade.md
index ed3fd2a..3490ac9 100644
--- a/upgrade.md
+++ b/upgrade.md
@@ -6,7 +6,7 @@
 
 * **下载最新的升级包** (根据年月日判断，如2019-01-02)
 
-* 如：***upkg-2019-01-02-v2019-1.0-u1.zip***
+> 如：***upkg-2019-01-02-v2019-1.0-u1.zip***
 
 * 上传到你的树莓派系统，解压这个升级包