update
diff --git a/charts/ingress-nginx/templates/default-backend-serviceaccount.yaml b/charts/ingress-nginx/templates/default-backend-serviceaccount.yaml
new file mode 100644
index 0000000..b45a95a
--- /dev/null
+++ b/charts/ingress-nginx/templates/default-backend-serviceaccount.yaml
@@ -0,0 +1,14 @@
+{{- if and .Values.defaultBackend.enabled .Values.defaultBackend.serviceAccount.create -}}
+apiVersion: v1
+kind: ServiceAccount
+metadata:
+ labels:
+ {{- include "ingress-nginx.labels" . | nindent 4 }}
+ app.kubernetes.io/component: default-backend
+ {{- with .Values.defaultBackend.labels }}
+ {{- toYaml . | nindent 4 }}
+ {{- end }}
+ name: {{ template "ingress-nginx.defaultBackend.serviceAccountName" . }}
+ namespace: {{ .Release.Namespace }}
+automountServiceAccountToken: {{ .Values.defaultBackend.serviceAccount.automountServiceAccountToken }}
+{{- end }}