diff --git a/blade-auth/Dockerfile b/blade-auth/Dockerfile
index 07ec3da1..19270053 100644
--- a/blade-auth/Dockerfile
+++ b/blade-auth/Dockerfile
@@ -1,3 +1,7 @@
+#若构建后验证码接口依旧报错可以将FROM改为如下两种
+#1.FROM bladex/alpine-java:8_server-jre_cn_unlimited
+#2.FROM adoptopenjdk/openjdk8-openj9:jdk8u275-b01_openj9-0.23.0-alpine-slim
+#第2点的最新tag可以到该地址查询：https://hub.docker.com/r/adoptopenjdk/openjdk8-openj9/tags?page=1&ordering=last_updated&name=alpine-slim
 FROM adoptopenjdk/openjdk8-openj9:alpine-slim
 
 MAINTAINER smallchill@163.com