diff --git a/php_server/Dockerfile b/php_server/Dockerfile
index 00a161e..8a4893d 100644
--- a/php_server/Dockerfile
+++ b/php_server/Dockerfile
@@ -4,7 +4,7 @@ FROM php:8.1-fpm
 # 安装系统工具和 PHP 扩展
 RUN apt-get update && apt-get install -y \
     git unzip libpq-dev libzip-dev zip \
-    && docker-php-ext-install pdo_mysql
+    && docker-php-ext-install pdo_mysql gd
 
 # 安装 Composer
 COPY --from=composer:2 /usr/bin/composer /usr/bin/composer