diff --git a/Gemfile b/Gemfile
index 0a08db16d..5138cfb0f 100644
--- a/Gemfile
+++ b/Gemfile
@@ -1,8 +1,5 @@
 source 'https://rubygems.org'
 
-# Specify gem dependencies in active_model_serializers.gemspec
-gemspec
-
 version = ENV['RAILS_VERSION'] || '4.0'
 
 if version == 'master'
@@ -27,6 +24,9 @@ else
   gem 'activerecord', gem_version, group: :test
 end
 
+# Specify gem dependencies in active_model_serializers.gemspec
+gemspec
+
 # https://github.com/bundler/bundler/blob/89a8778c19269561926cea172acdcda241d26d23/lib/bundler/dependency.rb#L30-L54
 @windows_platforms = [:mswin, :mingw, :x64_mingw]