diff --git a/k8s/infra/istio/Chart.lock b/k8s/infra/istio/Chart.lock
index d711a9c..e7035be 100644
--- a/k8s/infra/istio/Chart.lock
+++ b/k8s/infra/istio/Chart.lock
@@ -1,9 +1,9 @@
 dependencies:
 - name: base
   repository: https://istio-release.storage.googleapis.com/charts
-  version: 1.17.2
+  version: 1.18.2
 - name: istiod
   repository: https://istio-release.storage.googleapis.com/charts
   version: 1.17.2
-digest: sha256:a51dc7fcbf3fef5e38d92306246ceb53c06230c61fbf8efca81a12c3c1854b84
-generated: "2023-04-20T00:05:38.690793+09:00"
+digest: sha256:dc7de462e716611372815a7a922dde8544b1444853481d09998967cbf9974a93
+generated: "2023-07-25T19:58:54.082645015Z"
diff --git a/k8s/infra/istio/Chart.yaml b/k8s/infra/istio/Chart.yaml
index 7a1acf4..32b6c39 100644
--- a/k8s/infra/istio/Chart.yaml
+++ b/k8s/infra/istio/Chart.yaml
@@ -3,7 +3,7 @@ appVersion: 1.17.2
 dependencies:
 - name: base
   repository: https://istio-release.storage.googleapis.com/charts
-  version: 1.17.2
+  version: 1.18.2
 - name: istiod
   repository: https://istio-release.storage.googleapis.com/charts
   version: 1.17.2