diff --git a/Dockerfile b/Dockerfile
index 76d81cb9717aa921d546f156162fdd8b69add0b0..da7ee61e0e280fdc340896a889f9ac65dd7bc07b 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -8,4 +8,4 @@ RUN 	go get -u github.com/golang/dep/cmd/dep  github.com/ugorji/go/codec/codecge
 ENV GOPATH /srv/
 ENV PATH "$PATH:/srv/bin/"
 
-RUN go get github.com/coreos/etcd && go generate vendor/github.com/coreos/etcd/client/keys.go 
+RUN go get -u github.com/coreos/etcd && go generate vendor/github.com/coreos/etcd/client/keys.go