diff --git a/README.md b/README.md
index e11ae84..384b6dd 100644
--- a/README.md
+++ b/README.md
@@ -41,9 +41,7 @@ VERSION=v0.1.0 curl -sSL https://git.littlediary.cn/CN-JS-HuiBai/PromdataPanel/r
 
 ```bash
 # 进入程序目录
-cd /opt/promdata-panel
-# 执行更新脚本
-chmod +x update.sh && ./update.sh
+curl -sSL https://git.littlediary.cn/CN-JS-HuiBai/PromdataPanel/raw/branch/main/update.sh | bash
 ```
 
 #### 3. 系统初始化
diff --git a/update.sh b/update.sh
index fe7bae2..8b90cb9 100644
--- a/update.sh
+++ b/update.sh
@@ -34,16 +34,30 @@ if [ -d ".git" ]; then
 else
     echo -e "${BLUE}No git repository found. Updating via ZIP archive...${NC}"
     
-    # URL for zip download (adjust as needed for specific versioning)
-    ZIP_URL="https://git.littlediary.cn/CN-JS-HuiBai/PromdataPanel/archive/main.tar.gz"
+    # URL for zip download
+    ZIP_URL="https://git.littlediary.cn/CN-JS-HuiBai/PromdataPanel/archive/main.zip"
     TEMP_DIR="/tmp/promdata_update_$(date +%s)"
     
     mkdir -p "$TEMP_DIR"
-    echo "Downloading latest version..."
-    curl -L "$ZIP_URL" -o "$TEMP_DIR/latest.tar.gz"
+    echo "Downloading latest version (main branch)..."
+    curl -L "$ZIP_URL" -o "$TEMP_DIR/latest.zip"
     
+    # Ensure unzip is available
+    if ! command -v unzip &> /dev/null; then
+        echo -e "${BLUE}unzip is not installed. Attempting to install it...${NC}"
+        if command -v apt-get &> /dev/null; then
+            sudo apt-get update && sudo apt-get install -y unzip
+        elif command -v dnf &> /dev/null; then
+            sudo dnf install -y unzip
+        elif command -v yum &> /dev/null; then
+            sudo yum install -y yum-utils && sudo yum install -y unzip
+        elif command -v apk &> /dev/null; then
+            sudo apk add unzip
+        fi
+    fi
+
     echo "Extracting archive..."
-    tar -xzf "$TEMP_DIR/latest.tar.gz" -C "$TEMP_DIR"
+    unzip -q "$TEMP_DIR/latest.zip" -d "$TEMP_DIR"
     
     # The extracted folder is usually named project-main or similar
     EXTRACTED_FOLDER=$(ls -d "$TEMP_DIR"/*/ | head -n 1)