diff --git a/MACA.md b/MACA.md
index 21885fd..0348f90 100644
--- a/MACA.md
+++ b/MACA.md
@@ -13,10 +13,6 @@
 
    yum makecache
 
-   ```
-示例
-yum install commonlib
-   ```
 - **适配所有 Ubuntu 系统**
 
    ```bash