diff --git a/deploy/Dockerfile.backend b/deploy/Dockerfile.backend
index 6f77b54..6897b30 100644
--- a/deploy/Dockerfile.backend
+++ b/deploy/Dockerfile.backend
@@ -1,5 +1,9 @@
 FROM python:3.11-slim
 
+# 设置时区为上海
+ENV TZ=Asia/Shanghai
+RUN ln -snf /usr/share/zoneinfo/$TZ /etc/localtime && echo $TZ > /etc/timezone
+
 WORKDIR /app
 
 # 安装依赖（使用阿里云镜像）