diff --git a/charts/milvus/Chart.yaml b/charts/milvus/Chart.yaml
index 8521aed..dcfd802 100644
--- a/charts/milvus/Chart.yaml
+++ b/charts/milvus/Chart.yaml
@@ -3,7 +3,7 @@ name: milvus
 appVersion: "2.4.6"
 kubeVersion: "^1.10.0-0"
 description: Milvus is an open-source vector database built to power AI applications and vector similarity search.
-version: 4.2.0
+version: 4.2.1
 keywords:
   - milvus
   - elastic
diff --git a/charts/milvus/templates/attu-ingress.yaml b/charts/milvus/templates/attu-ingress.yaml
index a331aaa..09d3e95 100644
--- a/charts/milvus/templates/attu-ingress.yaml
+++ b/charts/milvus/templates/attu-ingress.yaml
@@ -18,6 +18,9 @@ metadata:
 {{ toYaml . | indent 4 }}
 {{- end }}
 spec:
+{{- if .Values.ingress.ingressClassName }}
+  ingressClassName: {{ .Values.ingress.ingressClassName }}
+{{- end }}
 {{- if .Values.attu.ingress.tls }}
   tls:
   {{- range .Values.attu.ingress.tls }}
diff --git a/charts/milvus/templates/ingress.yaml b/charts/milvus/templates/ingress.yaml
index ca83225..e1ab39d 100644
--- a/charts/milvus/templates/ingress.yaml
+++ b/charts/milvus/templates/ingress.yaml
@@ -18,6 +18,9 @@ metadata:
 {{ toYaml . | indent 4 }}
 {{- end }}
 spec:
+{{- if .Values.ingress.ingressClassName }}
+  ingressClassName: {{ .Values.ingress.ingressClassName }}
+{{- end }}
 {{- if .Values.ingress.tls }}
   tls:
   {{- range .Values.ingress.tls }}
diff --git a/charts/milvus/values.yaml b/charts/milvus/values.yaml
index f653979..caf4bbf 100644
--- a/charts/milvus/values.yaml
+++ b/charts/milvus/values.yaml
@@ -100,6 +100,7 @@ service:
 
 ingress:
   enabled: false
+  ingressClassName: ""
   annotations:
     # Annotation example: set nginx ingress type
     # kubernetes.io/ingress.class: nginx
@@ -482,6 +483,7 @@ attu:
   podLabels: {}
   ingress:
     enabled: false
+    ingressClassName: ""
     annotations: {}
     # Annotation example: set nginx ingress type
     # kubernetes.io/ingress.class: nginx