Gemfile in pdfkit-0.8.4 vs Gemfile in pdfkit-0.8.4.1

@@ -1,8 +1,8 @@
 source 'https://rubygems.org'
 
 group :test do
-  gem 'activesupport', '~> 3.0'
+  gem 'activesupport', '~> 4.1'
   gem 'simplecov', require: false
 end
 
 group :development, :test do
   gem 'pry'