diff --git a/README.md b/README.md
index 60add09..ab2b7ce 100644
--- a/README.md
+++ b/README.md
@@ -31,11 +31,12 @@ ICTLOGIN_RELEASE_TAG=v0.2.0 ./install.sh
 也可以先保存 `install.sh`，再从已有的本地文件或自定义 URL 安装：
 
 ```bash
-./install.sh
-./install.sh --source /path/to/ictlogin.pyz --prefix "$HOME/.local/bin"
-ICTLOGIN_PYZ_URL="https://example.invalid/ictlogin.pyz" ./install.sh
+curl --fail --location https://gitx.roy1994.top/mancitrus/ictlogin/raw/branch/main/install.sh -o install.sh
+sh install.sh
+sh install.sh --source /path/to/ictlogin.pyz --prefix "$HOME/.local/bin"
+ICTLOGIN_PYZ_URL="https://example.invalid/ictlogin.pyz" sh install.sh
 ICTLOGIN_PYZ_URL="https://example.invalid/ictlogin.pyz" \
-  ICTLOGIN_PYZ_SHA256_URL="https://example.invalid/ictlogin.pyz.sha256" ./install.sh
+  ICTLOGIN_PYZ_SHA256_URL="https://example.invalid/ictlogin.pyz.sha256" sh install.sh
 ```
 
 ## 使用