middleman-xmlvalidator.gemspec in middleman-xmlvalidator-0.0.40 vs middleman-xmlvalidator.gemspec in middleman-xmlvalidator-0.0.41

@@ -18,13 +18,13 @@
   gem.files         = `git ls-files`.split($/)
   gem.executables   = gem.files.grep(%r{^bin/}) { |f| File.basename(f) }
   gem.test_files    = gem.files.grep(%r{^(test|gem|features)/})
   gem.require_paths = ["lib"]
 
-  gem.add_development_dependency "bundler", "~> 1.3"
-  gem.add_development_dependency "rake"
-  gem.add_development_dependency "nokogiri", "~>1.5.6"
-  gem.add_development_dependency "middleman", "~>3.0.12"
+  gem.add_development_dependency("bundler", ["~> 1.3"])
+  gem.add_development_dependency("rake")
+  gem.add_development_dependency("nokogiri", ["~>1.5.6"])
+  gem.add_development_dependency("middleman", ["~>3.0.12"])
 
   gem.add_dependency("nokogiri", ["~>1.5.6"])
 
   gem.add_runtime_dependency("nokogiri", ["~>1.5.6"])
 end