Dependabot in Gitlab does not close MR after master is updated

Hello everybody…
I managed to make dependabot working with my gitlab.
I’m running the docker dependabot.

However I noticed that when I push a new version of the repo where the dependency is already updated, the MR is never closed.
I noticed that in Github it’s doing that.

E.g. I have the exact same project I pushed on both remote Github and Gitlab.
At first dependabot correctly opened the same number of PR/MR…
Then I update them all at once, since they are only minor patches…

BTW in this example it’s with the Hex.pm (Elixir) package manager.
When I commit to Github and Gitlab…
The PR in Github are closing automatically…
While on Gilab they remain…

I tried executing the Dependabot Runner manually using the web interface but the MR are still opened.

Does anyone know how to solve that?