diff --git a/ext/date/lib/date.rb b/ext/date/lib/date.rb
index 6888bd2d4e..627deaa6f9 100644
--- a/ext/date/lib/date.rb
+++ b/ext/date/lib/date.rb
@@ -4,7 +4,7 @@
 require 'date_core'
 
 class Date
-  VERSION = "3.3.4" # :nodoc:
+  VERSION = "3.4.0" # :nodoc:
 
   # call-seq:
   #   infinite? -> false