diff --git a/backend/conf/config.yml b/backend/conf/config.yml
index 8c07a507..08f223c5 100644
--- a/backend/conf/config.yml
+++ b/backend/conf/config.yml
@@ -38,7 +38,7 @@ task:
   workers: 4
 other:
   tmppath: "/tmp"
-version: 0.4.8
+version: 0.4.9
 setting:
   allowRegister: "N"
   enableTutorial: "N"