diff --git a/istio/istio/kustomization.yml b/istio/istio/kustomization.yml
index bb3cfe49..979a6cbb 100644
--- a/istio/istio/kustomization.yml
+++ b/istio/istio/kustomization.yml
@@ -5,7 +5,7 @@ resources:
 helmCharts:
   - name: base
     repo: https://istio-release.storage.googleapis.com/charts
-    version: 1.20.3 # https://artifacthub.io/packages/helm/istio-official/base
+    version: 1.21.2 # https://artifacthub.io/packages/helm/istio-official/base
     releaseName: istio-base
     namespace: istio-system
     includeCRDs: true