SSH - Active User List keeps logged out users v6.33.3

I have a program that uses ssh to automatically login to the router on a schedule, checks some things, and then logs out… repeat…

That user has a huge amount of entries in the “active user list” and growing… some are almost 24 hours old.
/user active print

How can I clear this list? Or how can I make the entries timeout?

v6.33.3