diff --git a/Dockerfile b/Dockerfile
index 3a68543..4d1bc2b 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,5 +1,6 @@
 FROM golang:alpine as builder
 MAINTAINER xtaci <daniel820313@gmail.com>
+ENV GO111MODULE=on
 RUN apk update && \
     apk upgrade && \
     apk add git gcc libc-dev linux-headers