serviceworker-rails.gemspec in serviceworker-rails-0.4.0 vs serviceworker-rails.gemspec in serviceworker-rails-0.5.1

- old
+ new

@@ -25,6 +25,7 @@
   spec.add_development_dependency "bundler", "~> 1.11"
   spec.add_development_dependency "rake", "~> 10.0"
   spec.add_development_dependency "minitest", "~> 5.0"
   spec.add_development_dependency "rack-test"
   spec.add_development_dependency "rails"
+  spec.add_development_dependency "appraisal", "~> 2.1.0"
 end