Installing Dynare for MacOS High Sierra

Hi everyone!
I want to know how version of Dynare I have to install.
I have the version of Matlab 2020a and MacOS high sierra 10.13.6.
Is there anyone who can help me? Thank you for your attention!

Given your old OS version, I would recommend either upgrading the OS or building Dynare 5.3 from source for your OS.