Yes, you can. Log into your team dashboard and click on the ⚙️ button for the member you want to adjust the membership plan for. Select "Adjust plan". The pop-up box will let you choose a new monthly membership or Team Hours membership to assign to that member.
Do note that we are sunsetting our monthly memberships for team accounts towards the end of 2026. So if you're looking to switch to a Team Hours plan that this is a great time to do so!