diff --git a/lib/_common.py b/lib/_common.py
index 4ddc757..37846dc 100644
--- a/lib/_common.py
+++ b/lib/_common.py
@@ -2,7 +2,7 @@
 #  This file is part of OneDrive Client Program which is released under MIT License
 #  See file LICENSE for full license details
 
-VERSION = "1.0.0"
+VERSION = "1.0.0-preview"
 PROGRAM_NAME = "OneDrive Client Program"