diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index 415206ec1..916c81b16 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -12,7 +12,7 @@ You need to run the `binary` target. This will create binaries for Linux platfor
 $ make binary
 docker build -t "traefik-dev:no-more-godep-ever" -f build.Dockerfile .
 Sending build context to Docker daemon 295.3 MB
-Step 0 : FROM golang:1.8
+Step 0 : FROM golang:1.9-alpine
  ---> 8c6473912976
 Step 1 : RUN go get github.com/Masterminds/glide
 [...]
@@ -30,7 +30,7 @@ traefik*
 
 ##### Setting up your `go` environment
 
-- You need `go` v1.8+
+- You need `go` v1.9+
 - It is recommended you clone Træfik into a directory like `~/go/src/github.com/containous/traefik` (This is the official golang workspace hierarchy, and will allow dependencies to resolve properly)
 - Set your `GOPATH` and `PATH` variable to be set to `~/go` via: