diff --git a/lib/rails/html/sanitizer/version.rb b/lib/rails/html/sanitizer/version.rb
index 446c687..276c9a0 100644
--- a/lib/rails/html/sanitizer/version.rb
+++ b/lib/rails/html/sanitizer/version.rb
@@ -1,7 +1,7 @@
 module Rails
   module Html
     class Sanitizer
-      VERSION = "1.4.2"
+      VERSION = "1.5.0.dev"
     end
   end
 end