diff --git a/capybara-webkit.gemspec b/capybara-webkit.gemspec
index 7b8cc14..34e28de 100644
--- a/capybara-webkit.gemspec
+++ b/capybara-webkit.gemspec
@@ -1,8 +1,10 @@
 Gem::Specification.new do |s|
   s.name = "capybara-webkit"
-  s.version = "0.3.0"
+  s.version = "0.4.0"
   s.authors = ["thoughtbot", "Joe Ferris", "Jason Morrison", "Tristan Dunn",
-               "Joshua Clayton", "Yuichi Tateno", "Aaron Gibralter"]
+               "Joshua Clayton", "Yuichi Tateno", "Aaron Gibralter",
+               "Vasily Reys", "petrushka", "John Bintz",
+               "Christopher Meiklejohn", "John Barker", "Jeremy Wells"]
   s.email = "support@thoughtbot.com"
   s.files = `git ls-files`.split("\n")
   s.test_files = `git ls-files -- {spec,features}/*`.split("\n")