lsb_release: command not found in latest Ubuntu Docker container

I just wanted to test something out real quick. So I ran a docker container and I wanted to check which version I was running: $ docker run -it ubuntu root@471bdb08b11a:/# lsb_release -a bash: lsb_release: command not found root@471bdb08b11a:/# So I tried installing it (as [suggested here][1]): root@471bdb08b11a:/# apt install lsb_release Reading package lists... Done Building dependency tree Reading state information... Done E: Unable to locate package lsb_release root@471bdb08b11a:/# Anybody any idea why this isn't working? [1]: http://www.andryhacks.com/bash-lsb_release-command-not-found/