diff --git a/.travis.yml b/.travis.yml
index 954d7841..0b073295 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -16,7 +16,8 @@ matrix:
     - rvm: ruby-head
     - rvm: jruby-head
   fast_finish: true
-# before_install:
+before_install:
+  - gem update bundler
 #   - apt-get update
 #   - apt-get install idn
 sudo: false
diff --git a/Gemfile b/Gemfile
index 5ba19d35..06e5da2f 100644
--- a/Gemfile
+++ b/Gemfile
@@ -25,4 +25,4 @@ group :test, :development do
   gem 'rack-mount', git: 'https://github.com/sporkmonger/rack-mount.git'
 end
 
-gem 'idn-ruby', :platform => [:mri_19, :mri_20, :mri_21]
+gem 'idn-ruby', :platform => [:mri_19, :mri_20, :mri_21, :mri_22]