You can’t choose what version of the supervisor you use.
You have the ability to roll it back, but it will automatically updates itself eventually. You cannot disable automatic updates, so even if you roll back it’s likely to just update itself back to the newest version in a short time. This is an intentional choice by the devs, who have stated many times that the supervisor will always update itself, when it wants to, with no plans to give the users control over these updates.