diff --git a/Dockerfile b/Dockerfile
index e693f38..e4555ba 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,5 +1,5 @@
 FROM golang:1.10.3-alpine
-ARG GOPROXY_VERSION=master
+ARG GOPROXY_VERSION=v5.2
 RUN apk update; apk upgrade; \
     apk add --no-cache git; \
     cd /go/src/; \
@@ -9,7 +9,6 @@ RUN apk update; apk upgrade; \
     git clone https://github.com/snail007/goproxy.git; \
 	cd goproxy; \
     git checkout ${GOPROXY_VERSION}; \
-    go build -ldflags "-s -w" -o proxy; \
-    cp proxy /proxy
+    go build -ldflags "-s -w" -o proxy;
 FROM alpine:3.7
-CMD /proxy ${OPTS}
\ No newline at end of file
+CMD cd /go/src/github.com/snail007/goproxy/ && ./proxy ${OPTS}
\ No newline at end of file