diff --git a/debian/upgrade.sh b/debian/upgrade.sh
index 01c7d22..24c1314 100644
--- a/debian/upgrade.sh
+++ b/debian/upgrade.sh
@@ -3,7 +3,7 @@
 # ...
 #
 # 使用方法:
-# URL="https://git.1-h.cc/Scripts/Linux/raw/branch/main/alpine/upgrade.sh"; curl -fsSL "$URL" | bash || wget -q -O - "$URL" | bash
+# URL="https://git.1-h.cc/Scripts/Linux/raw/branch/main/debian/upgrade.sh"; curl -fsSL "$URL" | bash || wget -q -O - "$URL" | bash
 
 DEBIAN_FRONTEND=noninteractive &&
   apt -qq update &&