diff --git a/MACA.md b/MACA.md
index d91c349..bbd0338 100644
--- a/MACA.md
+++ b/MACA.md
@@ -14,7 +14,7 @@
    yum makecache
    ```
 
-   ### 1.安装maca_sdk最新版本
+   #### 1.安装maca_sdk最新版本
    ```bash
    yum install maca_sdk
    ```