diff --git a/.travis.yml b/.travis.yml
index 379fab6..e29201d 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -3,6 +3,7 @@ language: ruby
 env:
   - "RAILS_VERSION=3.2.0"
   - "RAILS_VERSION=4.0.0"
+  - "RAILS_VERSION=4.1.1"
   - "RAILS_VERSION=master"
 
 rvm:
diff --git a/spec/rails_app/config/initializers/cookies_serializer.rb b/spec/rails_app/config/initializers/cookies_serializer.rb
new file mode 100644
index 0000000..36a5b55
--- /dev/null
+++ b/spec/rails_app/config/initializers/cookies_serializer.rb
@@ -0,0 +1,3 @@
+if Rails.version > '4.1.0'
+  Rails.application.config.action_dispatch.cookies_serializer = :json
+end
diff --git a/two_factor_authentication.gemspec b/two_factor_authentication.gemspec
index 8efe54b..55e89d0 100644
--- a/two_factor_authentication.gemspec
+++ b/two_factor_authentication.gemspec
@@ -33,4 +33,5 @@ Gem::Specification.new do |s|
   s.add_development_dependency 'rake'
   s.add_development_dependency 'rspec-rails'
   s.add_development_dependency 'capybara'
+  s.add_development_dependency 'pry'
 end