Upgrade from 13.2.6 to later version fails with looping database migration

Hi there
I was using gitlab ce version 11.11.2 in a docker-compose image provided by:
Now I created a backup, and restored it on a new server.
On that new server I systematically upgraded to newer gitlab versions according to the upgrade path layed out on the gitlab site. For each step I did use a new docker image.
The last one used successfully is: sameersbn/gitlab:13.2.6
The next image provided is: sameersbn/gitlab:13.3.0.
However, if I used it and do
docker-compose up
The process starts fine, but the it seems to loop in the database migration.
Can you give me an idea what to do?
Do you need any more info.
Thanks very much