```ruby
# -*- encoding: utf-8 -*-
require File.expand_path('../lib/rails_12factor/version', __FILE__)

Gem::Specification.new do |gem|
  gem.authors       = ["Richard Schneeman", "Terence Lee"]
  gem.email         = ["richard@heroku.com", "terence@heroku.com"]
  gem.description   = %q{Run Rails the 12factor way}
  gem.summary       = %q{ Following best practices from http://12factor.net run a maintainable, clean, and scalable app on Rails}
  gem.homepage      = "https://github.com/heroku/rails_12factor"

  gem.executables   = `git ls-files -- bin/*`.split("\n").map{ |f| File.basename(f) }
  gem.files         = `git ls-files`.split("\n")
  gem.test_files    = `git ls-files -- {test,spec,features}/*`.split("\n")
  gem.name          = "rails_12factor"
  gem.require_paths = ["lib"]
  gem.version       = Rails12factor::VERSION
  gem.license       = 'LICENSE'

  gem.add_development_dependency "minitest"
  gem.add_development_dependency "rake"
  gem.add_dependency "rails_serve_static_assets"
  gem.add_dependency "rails_stdout_logging"
end
```

Add license to gemspec, is modified New BSD, New BSD, and MIT
user
```ruby
# -*- encoding: utf-8 -*-
require File.expand_path('../lib/rails_12factor/version', __FILE__)

Gem::Specification.new do |gem|
  gem.authors       = ["Richard Schneeman", "Terence Lee"]
  gem.email         = ["richard@heroku.com", "terence@heroku.com"]
  gem.description   = %q{Run Rails the 12factor way}
  gem.summary       = %q{ Following best practices from http://12factor.net run a maintainable, clean, and scalable app on Rails}
  gem.homepage      = "https://github.com/heroku/rails_12factor"

  gem.executables   = `git ls-files -- bin/*`.split("\n").map{ |f| File.basename(f) }
  gem.files         = `git ls-files`.split("\n")
  gem.test_files    = `git ls-files -- {test,spec,features}/*`.split("\n")
  gem.name          = "rails_12factor"
  gem.require_paths = ["lib"]
  gem.version       = Rails12factor::VERSION
  gem.licenses      = ['Modified New BSD', 'New BSD', 'MIT']

  gem.add_development_dependency "minitest"
  gem.add_development_dependency "rake"
  gem.add_dependency "rails_serve_static_assets"
  gem.add_dependency "rails_stdout_logging"
end
```
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