diff --git a/Dockerfile b/Dockerfile
index 29b62591..f33928fa 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,16 +1,16 @@
 FROM reg.int.it2000.com.cn/com.gzzn.library/alpine-oraclejdk8:slim
 MAINTAINER xiunai78 <154707516@qq.com>
 
+
+RUN sed -i 's/dl-cdn.alpinelinux.org/mirrors.aliyun.com/g' /etc/apk/repositories \
+&& apk add -U tzdata \
+&& cp /usr/share/zoneinfo/Asia/Shanghai /etc/localtime \
+&& echo 'Asia/Shanghai' >/etc/timezone
+
 # Add the service itself
 ARG JAR_FILE
 ADD ${JAR_FILE} /usr/local/msgexchangeapi/myapp.jar
 
-RUN apk add -U tzdata
-
-#设置时区
-RUN cp /usr/share/zoneinfo/Asia/Shanghai /etc/localtime \
-  && echo 'Asia/Shanghai' >/etc/timezone
-
 EXPOSE 8080
 
 ENTRYPOINT ["/usr/bin/java", "-jar", "/usr/local/msgexchangeapi/myapp.jar"]
\ No newline at end of file