diff --git a/Dockerfile b/Dockerfile
index e09f25d..a107a32 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,5 +1,5 @@
 
-FROM golang:alpine as back
+FROM golang as back
 ARG GOPROXY=https://goproxy.cn,direct
 WORKDIR /build
 COPY . /build
@@ -9,9 +9,6 @@ ARG GONOSUMDB=gitea.timerzz.com
 RUN go build -trimpath -ldflags '-w -s' -o watcher ./main
 
 FROM alpine:latest
-ARG HTTP_PROXY=http://192.168.31.55:10809
-ARG HTTPS_PROXY=http://192.168.31.55:10809
-RUN apk add --no-cache ca-certificates tzdata
 WORKDIR /work
 COPY --from=back /build/watcher /work/
 ENTRYPOINT ["/work/watcher"]