```ruby
class FontFontawesome < Cask
  url 'http://fortawesome.github.io/Font-Awesome/assets/font-awesome-4.0.3.zip'
  homepage 'http://fortawesome.github.io/Font-Awesome/'
  version '4.0.3'
  sha1 '685d7b96e340a0609419c6d05261254eb758beda'
  font 'font-awesome-4.0.3/fonts/FontAwesome.otf'
end
```

Update Fontawesome to sha256 checksums
user
```ruby
class FontFontawesome < Cask
  url 'http://fortawesome.github.io/Font-Awesome/assets/font-awesome-4.0.3.zip'
  homepage 'http://fortawesome.github.io/Font-Awesome/'
  version '4.0.3'
  sha256 'ead30a79363ad5a29e1fac72aec3dbde3e986778405c042ca6d1a7a89fbfe841'
  font 'font-awesome-4.0.3/fonts/FontAwesome.otf'
end
```
assistant