diff --git a/.travis.yml b/.travis.yml
index 895db851..2ac51bbf 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -7,7 +7,6 @@ rvm:
   - rbx-2
   - ruby-head
 env:
-  - "RAILS_VERSION=3.2"
   - "RAILS_VERSION=4.0"
   - "RAILS_VERSION=4.1"
   - "RAILS_VERSION=master"
diff --git a/active_model_serializers.gemspec b/active_model_serializers.gemspec
index a3606fd4..b7d11074 100644
--- a/active_model_serializers.gemspec
+++ b/active_model_serializers.gemspec
@@ -18,8 +18,8 @@ Gem::Specification.new do |spec|
   spec.test_files    = spec.files.grep(%r{^(test|spec|features)/})
   spec.require_paths = ["lib"]
 
-  spec.add_dependency "activesupport", ">= 3.2"
-  spec.add_dependency "rails", ">= 3.2"
+  spec.add_dependency "activesupport", ">= 4.0"
+  spec.add_dependency "rails", ">= 4.0"
 
   spec.add_development_dependency "bundler", "~> 1.6"
   spec.add_development_dependency "rake"