Warning installing heroku gem

[adamwiggins]

$ gem install vulcan
Fetching: excon-0.16.10.gem (100%)
Fetching: heroku-api-0.3.7.gem (100%)
Fetching: netrc-0.7.7.gem (100%)
Fetching: heroku-2.33.5.gem (100%)
 !    The `heroku` gem has been deprecated and replaced with the Heroku Toolbelt.
 !    Download and install from: https://toolbelt.heroku.com
 !    For API access, see: https://github.com/heroku/heroku.rb

[adamwiggins]

Also:

$ vulcan create vulcan-adam
Creating vulcan-adam... done, stack is cedar
http://vulcan-adam.herokuapp.com/ | [email protected]:vulcan-adam.git
 !    The 'heroku' gem has been deprecated and replaced with the Heroku Toolbelt, download and install from https://toolbelt.heroku.com.

[Sjors]

Same here. Using ruby 1.9.3 and Mountain Lion.