Can't Update Logic Pro x

I use Logic on an iMac (Retina 4K,2.1 inch, 2017, Processor 3.6 GHz Quad-Core Intel Core i7), using Monterey 12.5.1.

I've updated all the software, but the version of Logic I have is 10.4.6.

I can't make any updates. I've just accepted the latest update of macOS 13.5 or later.

When I try to update the button prompt says "Download and older version of Logic Pro: The current version requires macOS 13.5 or later, but you can download the last compatible version. Cancel or Download"

When I select download it just keeps popping up again.

Can anyone help?

Thank you.