wisper.gemspec in wisper-1.2.1 vs wisper.gemspec in wisper-1.3.0

@@ -16,7 +16,7 @@
   gem.files         = `git ls-files`.split($/)
   gem.executables   = gem.files.grep(%r{^bin/}).map{ |f| File.basename(f) }
   gem.test_files    = gem.files.grep(%r{^(test|spec|features)/})
   gem.require_paths = ["lib"]
 
-  gem.add_development_dependency 'rspec'
+  gem.add_development_dependency 'rspec', "~> 3.0.0.beta1"
 end