diff --git a/Dockerfile b/Dockerfile
index f2a72e4..435f196 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -18,6 +18,7 @@ RUN --mount=type=cache,target=/var/cache/apt,sharing=locked,id=core-apt \
     sed -i "s@http://.*.debian.org@http://mirrors.ustc.edu.cn@g" /etc/apt/sources.list \
     && rm -f /etc/apt/apt.conf.d/docker-clean \
     && ln -sf /usr/share/zoneinfo/Asia/Shanghai /etc/localtime \
+    && echo "Asia/Shanghai" > /etc/timezone \
     && apt-get update \
     && apt-get install -y --no-install-recommends gcc python3-dev bash nginx vim curl procps net-tools