diff --git a/charts/gateway/Chart.yaml b/charts/gateway/Chart.yaml
index bfd6161..91648cb 100644
--- a/charts/gateway/Chart.yaml
+++ b/charts/gateway/Chart.yaml
@@ -14,7 +14,7 @@ type: application
 # This is the chart version. This version number should be incremented each time you make changes
 # to the chart and its templates, including the app version.
 # Versions are expected to follow Semantic Versioning (https://semver.org/)
-version: 0.2.22
+version: 0.2.23
 
 # This is the version number of the application being deployed. This version number should be
 # incremented each time you make changes to the application. Versions are not expected to
diff --git a/charts/gateway/README.md b/charts/gateway/README.md
index 8d81058..09be30c 100644
--- a/charts/gateway/README.md
+++ b/charts/gateway/README.md
@@ -170,7 +170,7 @@ The command removes all the Kubernetes components associated with the chart and
 | extraVolumeMounts | list | `[]` | Additional `volume`, See [Kubernetes Volumes](https://kubernetes.io/docs/concepts/storage/volumes/) for the detail. |
 | extraVolumes | list | `[]` | Additional `volume`, See [Kubernetes Volumes](https://kubernetes.io/docs/concepts/storage/volumes/) for the detail. |
 | fullnameOverride | string | `""` |  |
-| gateway.externalIPs | list | `[]` |  |
+| gateway.externalIPs | list | `[]` | IPs for which nodes in the cluster will also accept traffic for the servic annotations:   service.beta.kubernetes.io/aws-load-balancer-type: nlb |
 | gateway.externalTrafficPolicy | string | `"Cluster"` |  |
 | gateway.http | object | `{"additionalContainerPorts":[],"containerPort":9080,"enabled":true,"servicePort":80}` | API7 Gateway service settings for http |
 | gateway.http.additionalContainerPorts | list | `[]` | Support multiple http ports, See [Configuration](https://github.com/apache/apisix/blob/0bc65ea9acd726f79f80ae0abd8f50b7eb172e3d/conf/config-default.yaml#L24) |
diff --git a/charts/gateway/templates/service-admin.yaml b/charts/gateway/templates/service-admin.yaml
index 4bdbe41..3a5f9ec 100644
--- a/charts/gateway/templates/service-admin.yaml
+++ b/charts/gateway/templates/service-admin.yaml
@@ -14,6 +14,9 @@ metadata:
 spec:
   type: {{ .Values.admin.type }}
   {{- if eq .Values.admin.type "LoadBalancer" }}
+  {{- if .Values.admin.loadBalancerClass }}
+  loadBalancerClass: {{ .Values.admin.loadBalancerClass }}
+  {{- end }}
   {{- if .Values.admin.loadBalancerIP }}
   loadBalancerIP: {{ .Values.admin.loadBalancerIP }}
   {{- end }}
diff --git a/charts/gateway/templates/service-gateway.yaml b/charts/gateway/templates/service-gateway.yaml
index 0408306..22e981c 100644
--- a/charts/gateway/templates/service-gateway.yaml
+++ b/charts/gateway/templates/service-gateway.yaml
@@ -17,6 +17,9 @@ spec:
   externalTrafficPolicy: {{ .Values.gateway.externalTrafficPolicy }}
   {{- end }}
   {{- if eq .Values.gateway.type "LoadBalancer" }}
+  {{- if .Values.gateway.loadBalancerClass }}
+  loadBalancerClass: {{ .Values.gateway.loadBalancerClass }}
+  {{- end }}
   {{- if .Values.gateway.loadBalancerIP }}
   loadBalancerIP: {{ .Values.gateway.loadBalancerIP }}
   {{- end }}
diff --git a/charts/gateway/values.yaml b/charts/gateway/values.yaml
index 9800f29..30f2a82 100644
--- a/charts/gateway/values.yaml
+++ b/charts/gateway/values.yaml
@@ -244,6 +244,11 @@ gateway:
   # ref: https://kubernetes.io/docs/tasks/access-application-cluster/create-external-load-balancer/#preserving-the-client-source-ip
   externalTrafficPolicy: Cluster
   # type: LoadBalancer
+  # loadBalancerClass: "my-loadbalancer-class"
+  # loadBalancerIP: a.b.c.d
+  # loadBalancerSourceRanges:
+  #   - "143.231.0.0/16"
+  # -- IPs for which nodes in the cluster will also accept traffic for the servic
   # annotations:
   #   service.beta.kubernetes.io/aws-load-balancer-type: nlb
   externalIPs: []
@@ -311,6 +316,7 @@ admin:
   enabled: false
   # -- admin service type
   type: ClusterIP
+  # loadBalancerClass: "my-loadbalancer-class"
   # loadBalancerIP: a.b.c.d
   # loadBalancerSourceRanges:
   #   - "143.231.0.0/16"