diff --git a/deploy/webhook-create-signed-cert.sh b/deploy/webhook-create-signed-cert.sh
index 1de7989..9416456 100755
--- a/deploy/webhook-create-signed-cert.sh
+++ b/deploy/webhook-create-signed-cert.sh
@@ -91,7 +91,6 @@ spec:
   groups:
   - system:authenticated
   request: $(< "${tmpdir}"/server.csr base64 | tr -d '\n')
-  signerName: "kubernetes.io/kube-apiserver-client"
   usages:
   - digital signature
   - key encipherment