retries.gemspec in retries-0.0.3 vs retries.gemspec in retries-0.0.4

@@ -16,9 +16,10 @@
   gem.version       = Retries::VERSION
 
   # For running the tests
   gem.add_development_dependency "rake"
   gem.add_development_dependency "scope"
+  gem.add_development_dependency "rr"
 
   # For generating the documentation
   gem.add_development_dependency "yard"
   gem.add_development_dependency "redcarpet"
 end