diff --git a/hack/update-openapi-spec.sh b/hack/update-openapi-spec.sh
index 3f70b896693..4b870c31f81 100755
--- a/hack/update-openapi-spec.sh
+++ b/hack/update-openapi-spec.sh
@@ -75,6 +75,7 @@ kube::log::status "Starting kube-apiserver"
   --etcd-servers="http://${ETCD_HOST}:${ETCD_PORT}" \
   --advertise-address="10.10.10.10" \
   --cert-dir="${TMP_DIR}/certs" \
+  --feature-gates=AllAlpha=true \
   --runtime-config="api/all=true" \
   --token-auth-file="${TMP_DIR}/tokenauth.csv" \
   --authorization-mode=RBAC \