diff --git a/Dockerfile b/Dockerfile
index 3d8d55b..d19926f 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM ubuntu:14.04
+FROM ubuntu:trusty-20190425
 
 ADD config/docker_apt_preferences /etc/apt/preferences.d/brightbox-ruby-ng
 # RUN echo 'deb http://archive.ubuntu.com/ubuntu trusty universe multiverse' > /etc/apt/sources.list.d/verse.list