Can't update to 10.14

My macbook pro 2018 is stuck on Mac OS Mojave 10.13.6 and can't find a update to Mac OS Mojave 10.14.

I've tried looking for updates in multiple recommended places but it doesn't work. I have a software update in my App Store updates but it says "Update to version 10.13.6" the same as I have. When i try to install it nothing changes.