diff --git a/sdk/costmanagement/azure-mgmt-costmanagement/azure/mgmt/costmanagement/_version.py b/sdk/costmanagement/azure-mgmt-costmanagement/azure/mgmt/costmanagement/_version.py
index c47f66669f1b..e5754a47ce68 100644
--- a/sdk/costmanagement/azure-mgmt-costmanagement/azure/mgmt/costmanagement/_version.py
+++ b/sdk/costmanagement/azure-mgmt-costmanagement/azure/mgmt/costmanagement/_version.py
@@ -6,4 +6,4 @@
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
 
-VERSION = "1.0.0"
+VERSION = "1.0.0b1"