diff --git a/chart/cosigned/templates/webhook/webhook_validating.yaml b/chart/cosigned/templates/webhook/webhook_validating.yaml
index 0da934e47980..b60afaad3bb4 100644
--- a/chart/cosigned/templates/webhook/webhook_validating.yaml
+++ b/chart/cosigned/templates/webhook/webhook_validating.yaml
@@ -35,7 +35,6 @@ webhooks:
     name: webhook.cosigned.sigstore.dev
     admissionReviewVersions:
     - v1
-    - v1beta1
     rules:
       - apiGroups:
         - ""