diff --git a/example/Dockerfile b/example/Dockerfile
index 92b1cd7..1e1b3ae 100644
--- a/example/Dockerfile
+++ b/example/Dockerfile
@@ -1,4 +1,4 @@
-FROM       ubuntu:zesty
+FROM       ubuntu:xenial
 
 RUN apt-get update
 RUN apt-get install -y openssh-server python