Gemfile.lock in webdriver-0.6.3 vs Gemfile.lock in webdriver-0.6.4

@@ -1,8 +1,8 @@
 PATH
   remote: .
   specs:
-    webdriver (0.6.3)
+    webdriver (0.6.4)
 
 GEM
   remote: https://rubygems.org/
   specs:
     binding_of_caller (0.8.0)