diff --git a/.dockerignore b/.dockerignore
index 6b8710a..b3e8a3d 100644
--- a/.dockerignore
+++ b/.dockerignore
@@ -1 +1,4 @@
 .git
+.gitignore
+README.md
+LICENSE
\ No newline at end of file
diff --git a/Dockerfile b/Dockerfile
index 6c29a23..b59c4ca 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,8 +1,8 @@
-FROM alpine:3.6
+FROM alpine:3.11
 
 MAINTAINER Endial Fang ( endial@126.com )
 
-RUN echo "http://mirrors.ustc.edu.cn/alpine/v3.6/main" >> /etc/apk/repositories \
-  && echo "http://mirrors.ustc.edu.cn/alpine/v3.6/community" >> /etc/apk/repositories
+RUN echo "http://mirrors.ustc.edu.cn/alpine/v3.11/main" >> /etc/apk/repositories \
+  && echo "http://mirrors.ustc.edu.cn/alpine/v3.11/community" >> /etc/apk/repositories
 
 CMD []
diff --git a/README.md b/README.md
index 12fed67..8b9a0de 100644
--- a/README.md
+++ b/README.md
@@ -6,7 +6,8 @@
 
 ## 历史版本
 
-* v3.6, latest: 当前版本，基于Alpine 3.6
+* v3.11, latest: 基于Alpine 3.11
+* v3.6: 基于Alpine 3.6
 * v3.5: 基于Alpine 3.5
 
 
@@ -14,7 +15,7 @@
 
 ## 基本信息
 
-* 镜像地址：endial/base-alpine:v3.6
+* 镜像地址：endial/base-alpine:v3.11
 * 依赖镜像：alpine
 
 
@@ -33,7 +34,7 @@
 启动命令
 
 ```
-docker run --rm --name test -d endial/base-alpine:v3.6 tail /dev/stderr
+docker run --rm --name test -d endial/base-alpine:v3.11 tail /dev/stderr
 ```
 
 
@@ -51,7 +52,7 @@ docker exec -it test /bin/sh
 启动命令
 
 ```
-docker run --rm --name test -it endial/base-alpine:v3.6 /bin/sh
+docker run --rm --name test -it endial/base-alpine:v3.11 /bin/sh
 ```