diff --git a/charts/kubezero-istio-gateway/README.md b/charts/kubezero-istio-gateway/README.md
index 669ccaa..7a3cfad 100644
--- a/charts/kubezero-istio-gateway/README.md
+++ b/charts/kubezero-istio-gateway/README.md
@@ -1,6 +1,6 @@
 # kubezero-istio-gateway
 
-![Version: 0.21.0](https://img.shields.io/badge/Version-0.21.0-informational?style=flat-square) ![Type: application](https://img.shields.io/badge/Type-application-informational?style=flat-square)
+![Version: 0.21.1](https://img.shields.io/badge/Version-0.21.1-informational?style=flat-square) ![Type: application](https://img.shields.io/badge/Type-application-informational?style=flat-square)
 
 KubeZero Umbrella Chart for Istio gateways
 
@@ -21,7 +21,7 @@ Kubernetes: `>= 1.26.0`
 | Repository | Name | Version |
 |------------|------|---------|
 | https://cdn.zero-downtime.net/charts/ | kubezero-lib | >= 0.1.6 |
-| https://istio-release.storage.googleapis.com/charts | gateway | 1.21.0 |
+| https://istio-release.storage.googleapis.com/charts | gateway | 1.21.1 |
 
 ## Values
 
diff --git a/charts/kubezero-istio-gateway/charts/gateway/Chart.yaml b/charts/kubezero-istio-gateway/charts/gateway/Chart.yaml
index 1b35b2a..f484311 100644
--- a/charts/kubezero-istio-gateway/charts/gateway/Chart.yaml
+++ b/charts/kubezero-istio-gateway/charts/gateway/Chart.yaml
@@ -1,5 +1,5 @@
 apiVersion: v2
-appVersion: 1.21.0
+appVersion: 1.21.1
 description: Helm chart for deploying Istio gateways
 icon: https://istio.io/latest/favicons/android-192x192.png
 keywords:
@@ -9,4 +9,4 @@ name: gateway
 sources:
 - https://github.com/istio/istio
 type: application
-version: 1.21.0
+version: 1.21.1
diff --git a/charts/kubezero-istio/README.md b/charts/kubezero-istio/README.md
index ae9ee22..6c43449 100644
--- a/charts/kubezero-istio/README.md
+++ b/charts/kubezero-istio/README.md
@@ -1,6 +1,6 @@
 # kubezero-istio
 
-![Version: 0.21.0](https://img.shields.io/badge/Version-0.21.0-informational?style=flat-square) ![Type: application](https://img.shields.io/badge/Type-application-informational?style=flat-square)
+![Version: 0.21.1](https://img.shields.io/badge/Version-0.21.1-informational?style=flat-square) ![Type: application](https://img.shields.io/badge/Type-application-informational?style=flat-square)
 
 KubeZero Umbrella Chart for Istio
 
@@ -21,8 +21,8 @@ Kubernetes: `>= 1.26.0`
 | Repository | Name | Version |
 |------------|------|---------|
 | https://cdn.zero-downtime.net/charts/ | kubezero-lib | >= 0.1.6 |
-| https://istio-release.storage.googleapis.com/charts | base | 1.21.0 |
-| https://istio-release.storage.googleapis.com/charts | istiod | 1.21.0 |
+| https://istio-release.storage.googleapis.com/charts | base | 1.21.1 |
+| https://istio-release.storage.googleapis.com/charts | istiod | 1.21.1 |
 | https://kiali.org/helm-charts | kiali-server | 1.82.0 |
 
 ## Values