diff --git a/Dockerfile b/Dockerfile
index 7188df5..7f2c34d 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,7 +1,8 @@
 FROM php:8.2-fpm
 
 # 1. 安裝系統套件（這層幾乎不變，永遠快取）
-RUN apt-get update && apt-get install -y \
+RUN apt-get update && apt-get install -y libpq-dev \
+    && docker-php-ext-install pdo pdo_pgsql \
     git \
     curl \
     libpng-dev \