diff --git a/lib/celluloid/version.rb b/lib/celluloid/version.rb
index <HASH>..<HASH> 100644
--- a/lib/celluloid/version.rb
+++ b/lib/celluloid/version.rb
@@ -1,3 +1,3 @@
 module Celluloid
-  VERSION = "0.17.1"
+  VERSION = "0.17.5.pre"
 end
return to work-in-progress versioning