diff --git a/Gemfile b/Gemfile
index 95bdaef9850dbb873fb0448fa27ce79bb19e653e..79aacc0e88220f5910371e6336ebececdb83f12a 100644
--- a/Gemfile
+++ b/Gemfile
@@ -9,7 +9,8 @@ gem "dns-zone"
 gem "ruby-cute", :require => "cute"
 gem "peach"
 gem "restfully"
-gem "rspec", :group => [:development, :test]
-gem "webmock", :group => [:development, :test]
-gem "simplecov", :group => [:development, :test]
-gem "mutant-rspec", :group => [:development, :test]
+gem "rspec", :group => [:development]
+gem "webmock", :group => [:development]
+gem "simplecov", :group => [:development]
+gem "mutant-rspec", :group => [:development]
+gem "code-explorer", :group => [:development]