Faraday gem conflict when trying to bundle install

I am trying to add gem 'crowdtilt' to Gemfile but am getting:

Bundler could not find compatible versions for gem "faraday":

```
In Gemfile:
  crowdtilt (>= 0) ruby depends on
  faraday (< 0.9, >= 0.7.4) ruby

  crowdtilt (>= 0) ruby depends on
     faraday (0.9.0) 
```
