diff --git a/alpine/Dockerfile b/alpine/Dockerfile
index 99def96..6e2916c 100644
--- a/alpine/Dockerfile
+++ b/alpine/Dockerfile
@@ -4,8 +4,12 @@ LABEL maintainer="ehlxr <ehlxr.me@gmail.com>"
 
 ENV TZ "Asia/Shanghai"
 
-RUN apk upgrade --update \
-    && apk add tzdata \
-    && ln -sf /usr/share/zoneinfo/${TZ} /etc/localtime \
-    && echo ${TZ} > /etc/timezone \
-    && rm -rf /var/cache/apk/*
\ No newline at end of file
+# RUN apk upgrade --update \
+#     && apk add tzdata \
+#     && ln -sf /usr/share/zoneinfo/${TZ} /etc/localtime \
+#     && echo ${TZ} > /etc/timezone \
+#     && rm -rf /var/cache/apk/*
+
+COPY Shanghai /usr/share/zoneinfo/${TZ}
+RUN ln -sf /usr/share/zoneinfo/${TZ} /etc/localtime \
+    && echo ${TZ} > /etc/timezone
\ No newline at end of file
diff --git a/alpine/Shanghai b/alpine/Shanghai
new file mode 100644
index 0000000..ce9e00a
Binary files /dev/null and b/alpine/Shanghai differ