I had Postgres 9.0.x installed with homebrew, but because of lack of some modules I removed it using:
brew uninstall postgres
and installed Postgres 9.1.3 from http://www.enterprisedb.com/downloads/postgres-postgresql-downloads.
Now I've got a problem - 2 different versions on pg_dump - 9.0.5 and 9.1.3 and 9.0.5 is the default version.
Is there any way to set the 9.1.3 version as the default version of pg_dump?
So based on your additional comments, your new version of pg_dump is not in your PATH, all you need to do is to remove the old version, and symlink the new one to any directory in your PATH, for example, /usr/bin.
Like follows:
sudo ln -s /actual/new/pg_dump /usr/bin/pg_dump
Hope this helps