How can upgrate Keycloak to latest verson?

Hi everyone,
i am using keycloak version 8.0.1 and using embed H2 database.
I would like to upgrade to latest version. I am using the docker to deploy.
Since the document only guide for normal set up. https://www.keycloak.org/docs/latest/upgrading/#_upgrading.

can anyone have the solution for this. ?
thanks a lot.