Degrade a Gem Dependencies - build

Question

twitter.gemspec file is
# coding: utf-8
lib = File.expand_path('../lib', __FILE__)
$LOAD_PATH.unshift(lib) unless $LOAD_PATH.include?(lib)
require 'twitter/version'
Gem::Specification.new do |spec|
spec.add_dependency 'faraday', ['~> 0.8', '< 0.10']
spec.add_dependency 'multi_json', '~> 1.0'
spec.add_dependency 'simple_oauth', '~> 0.2'
spec.add_development_dependency 'bundler', '~> 1.0'
spec.authors = ["John Nunemaker", "Wynn Netherland", "Erik Michaels-Ober", "Steve Richert", "Steve Agalloco"]
spec.cert_chain = ['certs/sferik.pem']
spec.description = %q{A Ruby interface to the Twitter API.}
spec.email = ['nunemaker#gmail.com', 'wynn.netherland#gmail.com', 'sferik#gmail.com', 'steve.richert#gmail.com', 'steve.agalloco#gmail.com']
spec.files = %w(.yardopts CHANGELOG.md CONTRIBUTING.md LICENSE.md README.md Rakefile twitter.gemspec)
spec.files += Dir.glob("lib/**/*.rb")
spec.files += Dir.glob("spec/**/*")
spec.homepage = 'http://sferik.github.com/twitter/'
spec.licenses = ['MIT']
spec.name = 'twitter'
spec.require_paths = ['lib']
spec.required_rubygems_version = '>= 1.3.5'
#spec.signing_key = File.expand_path("~/.gem/private_key.pem") if $0 =~ /gem\z/
spec.summary = spec.description
spec.test_files = Dir.glob("spec/**/*")
spec.version = Twitter::Version
end
I want to degrade dependencies faraday 0.8 to 0.7 how can i do this
plase help me

Answer 1

If you just want the latest patch in the 0.7 tree, you just need to change the faraday line to this:
spec.add_dependency 'faraday', '~> 0.7.0'
Or you can specify a specific version if you want:
spec.add_dependency 'faraday', '0.7.1'
For more information I'd recommend reading the Bundler page about Gemfiles http://bundler.io/v1.3/gemfile.html