iTunes won't install on latest version of Catalina

I'm trying to install iTunes. I updated Mac OS to 10.15.5 and have am up to date with all the other software updates.

When I try and install either version 12.8.1 or 12.8.2, I get an error message saying it can't be installed as I don't have the latest OS, which doesn't make sense as the OS I have installed is later than what is listed.

Has anyone else had the same problem?