How do I pin the CWA version in docker-compose?

[zeitchef]

v4 is too buggy for me and I don't like the dark theme at all. I'd like to rollback to the latest v3 but it doesn't seem the image is still available? For example, this doesn't work for me:

 image: crocodilestick/calibre-web-automated:3.1.4

What's the right way to do this?

[jrhedman]

Same, here:

image: crocodilestick/calibre-web-automated:V3.1.4