diff --git a/docker/Dockerfile.ponsim b/docker/Dockerfile.ponsim
index b1ae5fe..f67851b 100644
--- a/docker/Dockerfile.ponsim
+++ b/docker/Dockerfile.ponsim
@@ -1,7 +1,7 @@
 # -------------
 # Build stage
 
-FROM golang:alpine AS build-env
+FROM golang:1.9.2-alpine AS build-env
 
 # Install required packages
 RUN apk add --no-cache wget git libpcap-dev make build-base protobuf protobuf-dev