If you had shared your property's reservations iCal and no longer want them to have access, the following steps will revoke access to the current URL.
Hospitable will also generate a new URL. This means that if you've shared it elsewhere, such as on a booking platform, you'll need to share the new iCal URL.
Go to Properties
Click on a property name
Below the listings, you'll see the Export Calendar section. Click on the three dots beside the Copy iCal link button.
Click Revoke calendar access