Not able to update plugins after Grafana upgrade

Recently i upgraded from Grafana 5.4.3 to 6.0.0.
Then i noticed that some plugins have updates available.
I’m running grafana in a docker container, and when i try to update all plugins with grafana-cli i get the following:

If i try, for instance update my clock panel plugin, i got the following:

And same with the vonage-status-panel:

The strange thing is that i do an ls of the plugins, they are there:

Is this a misconfiguration on the grafana.ini?

Thank you in advance