Today my heroku toolbelt was broken not finding required gems anymore. Wondering why heroku toolbelt uses an old ruby and not the version I’ve installed with homebrew. I got:

$ heroku version
[long winding path]
/ruby/2.0.0/rubygems/core_ext/kernel_require.rb:45:in `require’:
cannot load such file — heroku-api (LoadError)

Maybe a heroku update has caused this.
I didn’t dig too deep into the problem but fixed it with
brew install heroku-toolbelt
that fixed the broken heroku toolbelt. Now I get:

$ heroku version
heroku-toolbelt/3.6.0 (x86_64-darwin13.0) ruby/2.1.1

Further reading – sounds related – here.