diff --git a/.travis.yml b/.travis.yml
index f5d716e..d6467b3 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -3,3 +3,7 @@ rvm:
   - 1.9.3
   - 2.0.0
   - jruby-head
+
+gemfile:
+  - gemfiles/activesupport3.2
+  - gemfiles/activesupport4.0
diff --git a/gemfiles/activesupport3.2 b/gemfiles/activesupport3.2
new file mode 100644
index 0000000..1e87734
--- /dev/null
+++ b/gemfiles/activesupport3.2
@@ -0,0 +1,4 @@
+source "https://rubygems.org"
+gemspec
+
+gem 'activesupport', '~> 3.2.0'
diff --git a/gemfiles/activesupport4.0 b/gemfiles/activesupport4.0
new file mode 100644
index 0000000..50a93e9
--- /dev/null
+++ b/gemfiles/activesupport4.0
@@ -0,0 +1,4 @@
+source "https://rubygems.org"
+gemspec
+
+gem 'activesupport', '~> 4.0.0'