Caledonia, who finished fourth in Championship 1 last season, have agreed to fill the vacancy in Division 1 at the start of the 22/23 campaign.
Other adjustments:
Up to Division 2 - Otter
Up to Division 3 - British Army
Up to Division 4 - Coventry
The vacancy in Division 5 will be filled by newcomers Radcliffe, who were the next ranked club at the last qualification tournament.