Switch the runtime version of flatpak app

If I list all runtimes, I see different apps use different versions of the same package. For instance,

list --runtime

outputs Freedesktop Platform org.freedesktop.Platform 21.08.20.1 21.08 system Freedesktop Platform org.freedesktop.Platform 22.08.12.1 22.08 system If I want to know which apps use the older version, I can type

list --app --app-runtime org.freedesktop.Platform//21.08

which, in my case, outputs the app Bla org.Bla.BlaBla 0.9.11 stable system Now, how can I force this app to run with the 22.08 version of Freedesktop Platform instead of the 21.08 version?