For those who are unable to patch the base game to version 1.67 in Mac OS X via the game launcher, here is the official link and instructions for the base game standalone Region 17 (Digital Game Version) cumulative Super Patcher:
http://llnet.thesims.cdn.ea.com/sims/u/f/sims3/mac/To-9355-1.67.2.024017.tgz