It varies depending on where it pulls the docker image from. I usually go to dockerhub and search for what is the 'Repository' box on the update container page. When you find it on dockerhub, click the tab that says 'Tags". Then, find the version you want and copy the appropriate text from the box on the right that starts 'docker pull X:tag', where X:tag is the image and version.
Of course, I'm probably using incorrect terms. so be careful.
Oh yeah, and changing to v1.7.0 didn't fix this bind :80 issue for me either.