home-assistant.io/source/more-info/unhealthy/supervisor.markdown

title	description
Supervisor was not able to update	More information on why a failed Supervisor update marks a system as unhealthy.

The issue

This can happen when there was a network issue during the startup of the Supervisor.

The solution

Manually update the Supervisor. This can be done from the {% my configuration title="Configuration" %} panel. On the card for "Supervisor", there is a button to update the Supervisor.

This can also be done with the CLI, by running the following command:

ha supervisor update

In case this doesn't work. Check the logs, if there's an error where a host can't be resolved (eg: lookup ghcr.io: no such host) there might be a problem with your network settings (eg: dns server that can't be reached).