diff --git a/README.md b/README.md
index 1131ed6..c4faeaf 100644
--- a/README.md
+++ b/README.md
@@ -17,10 +17,10 @@ bash dnmp.sh install phpmyadmin
 
 | 版本 | 容器名 | FastCGI 端口 | 目录 |
 | --- | --- | --- | --- |
-| PHP 7.4（默认启动） | php-7.4 | 127.0.0.1:9074 | php74 |
-| PHP 8.3（按需启动） | php-8.3 | 127.0.0.1:9083 | php83 |
+| PHP 8.3（默认启动） | php-8.3 | 127.0.0.1:9083 | php83 |
+| PHP 7.4（按需启动） | php-7.4 | 127.0.0.1:9074 | php74 |
 
-`bash dnmp.sh run` 只会启动 PHP 7.4；需要 PHP 8.3 时执行 `bash dnmp.sh start php83`（`bash dnmp.sh start all` 也会一并启动）。站点使用哪个版本由 nginx vhost 里的 `fastcgi_pass` 端口决定，参考 `nginx/conf/vhost/site.conf.example`。
+`bash dnmp.sh run` 启动的是 PHP 8.3；需要 PHP 7.4 时执行 `bash dnmp.sh start php74`。站点使用哪个版本由 nginx vhost 里的 `fastcgi_pass` 端口决定，参考 `nginx/conf/vhost/site.conf.example`。
 
 PHP 8.3 镜像需要自行构建并推送（Docker Hub 上的 `helloz/php` 只提供 7.4）：
 
@@ -36,9 +36,9 @@ docker push helloz/php:8.3-fpm-alpine
 # reload nginx config
 docker exec -it nginx xc.sh reload
 
-# start / stop PHP 8.3 on demand
-bash dnmp.sh start php83
-bash dnmp.sh stop php83
+# start / stop PHP 7.4 on demand
+bash dnmp.sh start php74
+bash dnmp.sh stop php74
 
 # check php version
 docker exec php-8.3 php -v
diff --git a/dnmp.sh b/dnmp.sh
index d001ba4..5dc739c 100644
--- a/dnmp.sh
+++ b/dnmp.sh
@@ -18,8 +18,8 @@ then
     export GROUP_ID=${GROUP_ID}    
 fi
 
-# 服务列表
-services=(nginx mysql php74 php83)
+# 服务列表（默认启动 PHP 8.3，7.4 可通过 start php74 按需启动）
+services=(nginx mysql php83)
 
 # 安装运行环境
 install_rumtime(){
diff --git a/docker-compose.yaml b/docker-compose.yaml
index 1bdecfe..1582133 100644
--- a/docker-compose.yaml
+++ b/docker-compose.yaml
@@ -12,18 +12,35 @@ services:
       - ./nginx/ssl:/usr/local/nginx/conf/ssl
     restart: always
 
-  php-fpm:
-    image: helloz/php:7.4-fpm-alpine
+  # PHP 7.4（按需启动：bash dnmp.sh start php74）
+  # php-fpm:
+  #   image: helloz/php:7.4-fpm-alpine
+  #   network_mode: host
+  #   container_name: php-7.4
+  #   environment:
+  #     - USER_ID=${USER_ID}
+  #     - GROUP_ID=${GROUP_ID}
+  #   user: "${USER_ID}:${GROUP_ID}"
+  #   volumes:
+  #     - ./php74/www.conf:/usr/local/etc/php-fpm.d/www.conf
+  #     - ./php74/php.ini:/usr/local/etc/php/conf.d/php.ini
+  #     - ./php74/log:/usr/local/log
+  #     - ./wwwroot:/var/www/html
+  #   restart: on-failure
+
+  # PHP 8.3（默认启动）
+  php83-fpm:
+    image: helloz/php:8.3-fpm-alpine
     network_mode: host
-    container_name: php-7.4
+    container_name: php-8.3
     environment:
       - USER_ID=${USER_ID}
       - GROUP_ID=${GROUP_ID}
     user: "${USER_ID}:${GROUP_ID}"
     volumes:
-      - ./php74/www.conf:/usr/local/etc/php-fpm.d/www.conf
-      - ./php74/php.ini:/usr/local/etc/php/conf.d/php.ini
-      - ./php74/log:/usr/local/log
+      - ./php83/www.conf:/usr/local/etc/php-fpm.d/www.conf
+      - ./php83/php.ini:/usr/local/etc/php/conf.d/php.ini
+      - ./php83/log:/usr/local/log
       - ./wwwroot:/var/www/html
     restart: on-failure
 
diff --git a/nginx/conf/nginx.conf b/nginx/conf/nginx.conf
index d7e9ffd..8ad2820 100644
--- a/nginx/conf/nginx.conf
+++ b/nginx/conf/nginx.conf
@@ -104,7 +104,7 @@ http {
         # PHP 配置
         location ~ [^/]\.php(/|$) {
             include fastcgi_params;
-            fastcgi_pass 127.0.0.1:9074;
+            fastcgi_pass 127.0.0.1:9083;
             fastcgi_index index.php;
             fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
         }
diff --git a/nginx/conf/vhost/site.conf.example b/nginx/conf/vhost/site.conf.example
index 3a2f9f2..ae35f67 100644
--- a/nginx/conf/vhost/site.conf.example
+++ b/nginx/conf/vhost/site.conf.example
@@ -1,7 +1,7 @@
 # PHP 版本通过 fastcgi_pass 的端口选择：
-#   127.0.0.1:9074 => PHP 7.4（默认）
-#   127.0.0.1:9083 => PHP 8.3
-# 把下面 location ~ \.php$ 中的端口改成 9083 即可让本站点使用 PHP 8.3
+#   127.0.0.1:9083 => PHP 8.3（默认）
+#   127.0.0.1:9074 => PHP 7.4（按需启动：bash dnmp.sh start php74）
+# 把下面 location ~ \.php$ 中的端口改成 9074 即可让本站点使用 PHP 7.4
 server {
   listen 80;
 
@@ -14,7 +14,7 @@ server {
 
     location ~ \.php$ {
         include fastcgi_params;
-        fastcgi_pass 127.0.0.1:9074;
+        fastcgi_pass 127.0.0.1:9083;
         fastcgi_index index.php;
         fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
         try_files $uri =404;
@@ -62,7 +62,7 @@ server {
 
     location ~ \.php$ {
         include fastcgi_params;
-        fastcgi_pass 127.0.0.1:9074;
+        fastcgi_pass 127.0.0.1:9083;
         fastcgi_index index.php;
         fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
         try_files $uri =404;