diff --git a/k8s/helm_charts2/Chart.yaml b/k8s/helm_charts2/Chart.yaml
index 968f6acdd..927a361e6 100644
--- a/k8s/helm_charts2/Chart.yaml
+++ b/k8s/helm_charts2/Chart.yaml
@@ -1,5 +1,5 @@
 apiVersion: v1
 description: SeaweedFS
 name: seaweedfs
-appVersion: "2.90"
-version: "2.90"
+appVersion: "2.91"
+version: "2.91"
diff --git a/weed/util/constants.go b/weed/util/constants.go
index 830c29698..b9367007f 100644
--- a/weed/util/constants.go
+++ b/weed/util/constants.go
@@ -5,7 +5,7 @@ import (
 )
 
 var (
-	VERSION_NUMBER = fmt.Sprintf("%.02f", 2.90)
+	VERSION_NUMBER = fmt.Sprintf("%.02f", 2.91)
 	VERSION        = sizeLimit + " " + VERSION_NUMBER
 	COMMIT         = ""
 )