diff --git a/.travis.yml b/.travis.yml
index 5cd3bd0..b060ebb 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,21 +1,12 @@
 language: ruby
 
 rvm:
+  - 1.8.7
   - 1.9.3
   - 2.0.0
   - 2.1.2
   - jruby-1.7
 
-env:
-  - ACTIVESUPPORT_VERSION=3.0
-  - ACTIVESUPPORT_VERSION=3.1
-  - ACTIVESUPPORT_VERSION=3.2
-
-matrix:
-  include:
-    - rvm: 1.8.7
-      env: ACTIVESUPPORT_VERSION=2.3
-
 install:
   - "bundle update"
 
diff --git a/Gemfile b/Gemfile
index 45c2822..a62f49d 100644
--- a/Gemfile
+++ b/Gemfile
@@ -2,19 +2,6 @@ source "http://rubygems.org"
 
 gemspec
 
-# for testing against different major releases of ActiveSupport
-if ENV['ACTIVESUPPORT_VERSION']
-  version = case ENV['ACTIVESUPPORT_VERSION']
-            when /2.3$/ then '~> 2.3.0'
-            when /3.0$/ then '~> 3.0.0'
-            when /3.1$/ then '~> 3.1.0'
-            when /3.2$/ then '~> 3.2.0'
-            else raise "Unsupported ActiveSupport version #{ENV['ACTIVESUPPORT_VERSION']}"
-            end
-
-  gem 'activesupport', version
-end
-
 group :development do
   # For yard's markdown support
   platforms :jruby do; gem 'maruku'; end