diff --git a/lib/light-service/action.rb b/lib/light-service/action.rb
index 1f58833e..97461b6d 100644
--- a/lib/light-service/action.rb
+++ b/lib/light-service/action.rb
@@ -1,3 +1,5 @@
+require 'active_support/deprecation'
+
 module LightService
   module Action
     def self.extended(base_class)
diff --git a/lib/light-service/context.rb b/lib/light-service/context.rb
index da0e1f77..025fe137 100644
--- a/lib/light-service/context.rb
+++ b/lib/light-service/context.rb
@@ -1,3 +1,5 @@
+require 'active_support/deprecation'
+
 module LightService
   module Outcomes
     SUCCESS = 0
diff --git a/lib/light-service/organizer.rb b/lib/light-service/organizer.rb
index faa69be1..227ce92e 100644
--- a/lib/light-service/organizer.rb
+++ b/lib/light-service/organizer.rb
@@ -1,3 +1,5 @@
+require 'active_support/deprecation'
+
 module LightService
   module Organizer
     def self.extended(base_class)
diff --git a/light-service.gemspec b/light-service.gemspec
index 7e542b4b..8e9b8bfb 100644
--- a/light-service.gemspec
+++ b/light-service.gemspec
@@ -16,7 +16,7 @@ Gem::Specification.new do |gem|
   gem.require_paths = ["lib"]
   gem.version       = LightService::VERSION
 
-  gem.add_dependency("activesupport", ">= 3.0", "< 5")
+  gem.add_dependency("activesupport", ">= 3.0")
 
   gem.add_development_dependency("rspec", "~> 3.0")
   gem.add_development_dependency("simplecov", "~> 0.11")