diff --git a/Dockerfile b/Dockerfile
index 0a2bc48..83edbfa 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -8,7 +8,7 @@
 # This host is built on top of ubuntu which is the same as the base-test image so should be most stable.
 #
 
-FROM ubuntu:latest
+FROM ubuntu:18.04
 
 RUN apt-get update && apt-get install -y net-tools iproute2 iputils-ping