diff --git a/Dockerfile b/Dockerfile
index 6a6192a5d41..e65218c97f6 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,7 +1,6 @@
 FROM golang:1.12.8 AS build
 WORKDIR /contour
 
-ENV GOPROXY=https://proxy.golang.org
 COPY go.mod ./
 RUN go mod download