No updates available

I have this problem for 2 years already but I didn't have the need for it to fix it until now.

I can't update my CC applications. I only get the 'big' updates, like from CC 2017 to CC 2018. I don't get the CC 2018.1 etc. updates.

I have my license on a PC, which does show all the updates, and a late 2015 15" Macbook Pro which doesn't... It doesn't show any update on my mac while they are both on the same version.