diff --git a/templates/_helpers.tpl b/templates/_helpers.tpl
index 1703db6..833bf6d 100644
--- a/templates/_helpers.tpl
+++ b/templates/_helpers.tpl
@@ -61,3 +61,14 @@ Create the name of the service account to use
     {{ default "default" .Values.serviceAccount.name }}
 {{- end -}}
 {{- end -}}
+
+{{/*
+Return supported apiVersion for poddisruptionbudget
+*/}}
+{{- define "policy.apiVersion" -}}
+{{- if trimPrefix "v" .Capabilities.KubeVersion.Version | semverCompare "<1.21.0" -}}
+{{- print "policy/v1beta1" -}}
+{{- else -}}
+{{- print "policy/v1" -}}
+{{- end -}}
+{{- end -}}
diff --git a/templates/poddisruptionbudget.yaml b/templates/poddisruptionbudget.yaml
index 473a2e0..1bce159 100644
--- a/templates/poddisruptionbudget.yaml
+++ b/templates/poddisruptionbudget.yaml
@@ -1,6 +1,6 @@
 ---
 {{- if .Values.maxUnavailable }}
-apiVersion: policy/v1beta1
+apiVersion: {{ include "policy.apiVersion" . }}
 kind: PodDisruptionBudget
 metadata:
   name: {{ include "varnish.fullname" . }}