diff --git a/Dockerfile b/Dockerfile
index c197975..cb75c98 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM golang:1.11-alpine3.8 as builder
+FROM golang:1.12.1-alpine as builder
 WORKDIR /go/src/git.trj.tw/golang/mtfosbot
 RUN apk add --no-cache make git \
   && go get -u github.com/otakukaze/go-bindata/...
@@ -11,4 +11,4 @@ WORKDIR /data
 COPY --from=builder /go/src/git.trj.tw/golang/mtfosbot/mtfosbot /usr/bin
 COPY config.default.yml config.yml
 EXPOSE 10230
-CMD ["/usr/bin/mtfosbot", "-f", "/data/config.yml", "-dbtool"]
\ No newline at end of file
+CMD ["/usr/bin/mtfosbot", "-f", "/data/config.yml", "-dbtool"]