diff --git a/.travis.yml b/.travis.yml
index 7911e745..a044659d 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -6,6 +6,7 @@ rvm:
   - rbx-19mode
 gemfile:
   - Gemfile
+  - Gemfile.rails3
   - Gemfile.edge
 notifications:
   email: false
diff --git a/Gemfile.rails3 b/Gemfile.rails3
index 7afd0941..7dc0bc7e 100644
--- a/Gemfile.rails3
+++ b/Gemfile.rails3
@@ -3,8 +3,9 @@ source 'https://rubygems.org'
 # Specify gem dependencies in active_model_serializers.gemspec
 gemspec
 
+gem 'minitest'
 gem 'sqlite3'
 gem 'coveralls', :require => false
 gem 'simplecov', :require => false
 
-gem 'rails', "~> 3.2.15"
+gem 'rails', "~> 3.2"