Appraisals in sprockets-plugin-0.2.1 vs Appraisals in sprockets-plugin-0.3.0

@@ -15,5 +15,13 @@
 end
 
 appraise 'sprockets-2.4' do
   gem 'sprockets', '~> 2.4.0'
 end
+
+appraise 'sprockets-3.0' do
+  gem 'sprockets', '~> 3.0.0'
+end
+
+appraise 'sprockets-3.1' do
+  gem 'sprockets', '~> 3.1.0'
+end