diff --git a/.travis.yml b/.travis.yml
index 159b784..085abe0 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -9,6 +9,7 @@ rvm:
 
 gemfile:
   - gemfiles/active_record_32.gemfile
+  - gemfiles/active_record_40.gemfile
   - gemfiles/data_mapper_12.gemfile
   - gemfiles/mongo_mapper.gemfile
   - gemfiles/mongoid_30.gemfile
diff --git a/gemfiles/active_record_40.gemfile b/gemfiles/active_record_40.gemfile
new file mode 100644
index 0000000..e4c2ed1
--- /dev/null
+++ b/gemfiles/active_record_40.gemfile
@@ -0,0 +1,8 @@
+source 'https://rubygems.org'
+
+gem 'railties', '>= 4.0.0'
+gem 'activerecord', '>= 4.0.0', :require => 'active_record'
+gem 'rspec-rails', '>= 2.0'
+gem 'database_cleaner', '>= 1.0.1'
+
+gemspec :path => '../'