diff --git a/MACA.md b/MACA.md
index 62eb836..da69ddf 100644
--- a/MACA.md
+++ b/MACA.md
@@ -31,7 +31,7 @@
 
    - **升级maca_sdk到最新版本**
       ```bash
-      yum upgrade maca_sdk
+      yum update maca_sdk
       ```
 
    - **卸载maca_sdk**
@@ -66,7 +66,7 @@
 
    - **升级maca_sdk到最新版本**
       ```bash
-      apt upgrade maca_sdk
+      apt install --only-upgrade maca_sdk
       ```
 
    - **卸载maca_sdk**