diff --git a/.gemtest b/.gemtest
deleted file mode 100644
index e69de29b..00000000
diff --git a/.travis.yml b/.travis.yml
index 2dede70a..dea73319 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,7 +1,6 @@
 sudo: false
 language: ruby
 script: bundle exec script/test
-bundler_args: --without development --path vendor/bundle --jobs=3 --retry=3
 cache: bundler
 
 rvm:
diff --git a/Gemfile b/Gemfile
index 7259adb8..da3a3ec1 100644
--- a/Gemfile
+++ b/Gemfile
@@ -10,7 +10,6 @@ group :test do
   gem 'em-synchrony', '>= 1.0.3', :require => ['em-synchrony', 'em-synchrony/em-http']
   gem 'excon', '>= 0.27.4'
   gem 'httpclient', '>= 2.2'
-  gem 'leftright', '>= 0.9', :require => false
   gem 'mime-types', '~> 1.25', :platforms => [:jruby, :ruby_18]
   gem 'minitest', '>= 5.0.5'
   gem 'net-http-persistent', '>= 2.9.4'
diff --git a/faraday.gemspec b/faraday.gemspec
index 118581a0..1f7356dc 100644
--- a/faraday.gemspec
+++ b/faraday.gemspec
@@ -4,9 +4,6 @@ File.read(lib_file) =~ /\bVERSION\s*=\s*["'](.+?)["']/
 version = $1
 
 Gem::Specification.new do |spec|
-  spec.specification_version = 2 if spec.respond_to? :specification_version=
-  spec.required_rubygems_version = '>= 1.3.5'
-
   spec.name    = lib
   spec.version = version
 
@@ -18,7 +15,6 @@ Gem::Specification.new do |spec|
   spec.licenses = ['MIT']
 
   spec.add_dependency 'multipart-post', '>= 1.2', '< 3'
-  spec.add_development_dependency 'bundler', '~> 1.0'
 
   spec.files = `git ls-files -z lib LICENSE.md README.md`.split("\0")
 end
diff --git a/test/helper.rb b/test/helper.rb
index 9f955bd2..a76df69a 100644
--- a/test/helper.rb
+++ b/test/helper.rb
@@ -14,14 +14,6 @@ end
 gem 'minitest' if defined? Bundler
 require 'minitest/autorun'
 
-if ENV['LEFTRIGHT']
-  begin
-    require 'leftright'
-  rescue LoadError
-    puts "Run `gem install leftright` to install leftright."
-  end
-end
-
 require File.expand_path('../../lib/faraday', __FILE__)
 
 require 'stringio'