diff --git a/Dockerfile b/Dockerfile
index 90439eb..aa799de 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,8 +1,8 @@
 FROM golang AS build-env
 
-RUN go get -u github.com/esrrhs/pingtunnel
-RUN go get -u github.com/esrrhs/pingtunnel/...
-RUN go install github.com/esrrhs/pingtunnel
+RUN GO111MODULE=off go get -u github.com/esrrhs/pingtunnel
+RUN GO111MODULE=off go get -u github.com/esrrhs/pingtunnel/...
+RUN GO111MODULE=off go install github.com/esrrhs/pingtunnel
 
 FROM debian
 COPY --from=build-env /go/bin/pingtunnel .