Preventing my Mac Sequoia from updating to 15.2

Hi, I need to avoid the Mac Sequoia 15.2 upgrade due to incompatible software on my Mac. I have attempted to stop mac from updating in the System settings but it seems that there is a slight bug and the system ignores the request not to update. Can anybody shed some light on how to prevent Mac from updating for now. I have downloaded and re-installed 15.1 but no attempt at stopping the software has been successful