diff --git a/lib/tracking_number/version.rb b/lib/tracking_number/version.rb
index 144fe3c..0b1e8fb 100644
--- a/lib/tracking_number/version.rb
+++ b/lib/tracking_number/version.rb
@@ -1,3 +1,3 @@
 module TrackingNumber
-  VERSION = "0.10.5"
+  VERSION = "1.0.0.pre1"
 end