diff --git a/charts/vault/templates/injector-mutating-webhook.yaml b/charts/vault/templates/injector-mutating-webhook.yaml
index d0cafa6..081bec9 100644
--- a/charts/vault/templates/injector-mutating-webhook.yaml
+++ b/charts/vault/templates/injector-mutating-webhook.yaml
@@ -8,7 +8,7 @@ SPDX-License-Identifier: MPL-2.0
 {{- if .Capabilities.APIVersions.Has "admissionregistration.k8s.io/v1" }}
 apiVersion: admissionregistration.k8s.io/v1
 {{- else }}
-apiVersion: admissionregistration.k8s.io/v1beta1
+apiVersion: admissionregistration.k8s.io/v1
 {{- end }}
 kind: MutatingWebhookConfiguration
 metadata: