Hmm. Can't figure this one out:

http://packages.ubuntu.com/saucy/postgresql

So is it 9.1 or 9.3? :-).

Also - you wouldn't mind adding 'trusty' as well would you? So we're ahead of time:

http://packages.ubuntu.com/trusty/postgresql

That will be a new line with something like: 14.04 => 9.3. Thanks.