Gemfile in takosan-1.2.0 vs Gemfile in takosan-1.3.0

@@ -1,4 +1,8 @@
 source 'https://rubygems.org'
 
 # Specify your gem's dependencies in takosan.gemspec
 gemspec
+
+if Gem::Version.create(RUBY_VERSION) < Gem::Version.create("2.2.2")
+  gem "activesupport", ">= 4.0.0", "< 5.0.0"
+end