diff --git a/lib/jsduck/version.rb b/lib/jsduck/version.rb
index 2db259aba..1d2b07fdd 100644
--- a/lib/jsduck/version.rb
+++ b/lib/jsduck/version.rb
@@ -1,5 +1,5 @@
 # This file is updated by rake bump task.
 # Do not edit by hand.
 module JsDuck
-  VERSION = "5.3.4"
+  VERSION = "6.0.0.beta"
 end