diff --git a/breach-mitigation-rails.gemspec b/breach-mitigation-rails.gemspec
index 0e5f808..28898a6 100644
--- a/breach-mitigation-rails.gemspec
+++ b/breach-mitigation-rails.gemspec
@@ -18,7 +18,7 @@ Gem::Specification.new do |spec|
   spec.test_files    = spec.files.grep(%r{^(test|spec|features)/})
   spec.require_paths = ["lib"]
 
-  spec.add_dependency "active_support"
+  spec.add_dependency "activesupport"
   spec.add_dependency "rack"
   spec.add_development_dependency "bundler", "~> 1.3"
   spec.add_development_dependency "rspec"