Cubase Pro 10.5 Compatibility

Hello Guys

I’ve been using Cubase pro 9.5 on a 2009 Mac Pro, with OS X Mavericks (10.9)
I want to upgrade to 10.5 but need to know if i can use it on Mavericks, because my Mac doesn’t support any new OS System

Please, if someone knows this, let me know!!

thanks!!

:pray::pray::pray: