diff --git a/.travis.yml b/.travis.yml
index 75dd04f..dc320ef 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,14 +1,23 @@
 before_install: gem update bundler
-env: RAKE_TASK=spec
 language: ruby
 matrix:
   include:
-  - gemfile: gemfiles/activemodel3.rb
+  # test lastest config
+  - rvm: 2.3
+
+  # test versions of ActiveRecord
+  - gemfile: gemfiles/activerecord4.rb
+    rvm: 2.3
+  - gemfile: gemfiles/activerecord3.rb
+    rvm: 2.3
+
+  # test versions of MRI
+  - gemfile: gemfiles/activerecord4.rb
     rvm: 2.2
-rvm:
-- 2.2
-- 2.1
-- 2.0
-- 1.9
-- rbx-2
-script: bundle exec rake $RAKE_TASK
+  - gemfile: gemfiles/activerecord4.rb
+    rvm: 2.1
+  - gemfile: gemfiles/activerecord4.rb
+    rvm: 2.0
+  - gemfile: gemfiles/activerecord4.rb
+    rvm: 1.9
+script: bundle exec rake spec
diff --git a/gemfiles/activerecord3.rb b/gemfiles/activerecord3.rb
new file mode 100644
index 0000000..14c3a6b
--- /dev/null
+++ b/gemfiles/activerecord3.rb
@@ -0,0 +1,7 @@
+# coding: utf-8
+
+source 'https://rubygems.org'
+
+gemspec path: '..'
+
+gem 'activerecord', '~> 3.0'
diff --git a/gemfiles/activemodel3.rb b/gemfiles/activerecord4.rb
similarity index 70%
rename from gemfiles/activemodel3.rb
rename to gemfiles/activerecord4.rb
index 11c5fb7..45db0c5 100644
--- a/gemfiles/activemodel3.rb
+++ b/gemfiles/activerecord4.rb
@@ -4,4 +4,4 @@
 
 gemspec path: '..'
 
-gem 'activemodel', '~> 3.0'
+gem 'activemodel', '~> 4.0'
diff --git a/sqlite3_ar_regexp.gemspec b/sqlite3_ar_regexp.gemspec
index 5259b43..455604e 100644
--- a/sqlite3_ar_regexp.gemspec
+++ b/sqlite3_ar_regexp.gemspec
@@ -22,7 +22,7 @@ Gem::Specification.new do |spec|
   spec.required_ruby_version = '>= 1.9.3'
 
   spec.add_dependency 'sqlite3'
-  spec.add_dependency 'activerecord', '>= 3.2', '< 5'
+  spec.add_dependency 'activerecord', '>= 3.2'
 
   spec.add_development_dependency 'rake'
   spec.add_development_dependency 'rspec'