Minecraft Versions aren't correct

Hello, I have a Mac and It isn't showing the 1.16.3 Version and the issue is you cannot start realms without having it. When I check the versions and click the newest one it tells me that it is up to date when it's set on 1.16.2. I have delete Minecraft and have restarted it many times yet, there is nothing that fixes it. If this could be fixed  I would love that because I just bought realms.