Gemfile in ransack-1.6.5 vs Gemfile in ransack-1.6.6

@@ -5,12 +5,13 @@
 
 rails = ENV['RAILS'] || '4-2-stable'
 
 if rails == 'master'
   gem 'arel', github: 'rails/arel'
+  gem 'polyamorous', github: 'activerecord-hackery/polyamorous'
+else
+  gem 'polyamorous', '~> 1.2'
 end
-
-gem 'polyamorous', '~> 1.1'
 
 gem 'pry'
 
 # Provide timezone information on Windows
 gem 'tzinfo-data', platforms: [:mingw, :mswin, :x64_mingw]