diff --git a/charts/pulsar/templates/tls-cert-internal-issuer.yaml b/charts/pulsar/templates/tls-cert-internal-issuer.yaml
index 2a944a5..6a7d25d 100644
--- a/charts/pulsar/templates/tls-cert-internal-issuer.yaml
+++ b/charts/pulsar/templates/tls-cert-internal-issuer.yaml
@@ -19,7 +19,7 @@
 
 {{- if .Values.certs.internal_issuer.enabled }}
 {{- if eq .Values.certs.internal_issuer.type "selfsigning" }}
-apiVersion: cert-manager.io/v1alpha2
+apiVersion: "{{ .Values.certs.internal_issuer.apiVersion }}"
 kind: Issuer
 metadata:
   name: "{{ template "pulsar.fullname" . }}-{{ .Values.certs.internal_issuer.component }}"
@@ -28,7 +28,7 @@ spec:
   selfSigned: {}
 ---
 
-apiVersion: cert-manager.io/v1alpha2
+apiVersion: "{{ .Values.certs.internal_issuer.apiVersion }}"
 kind: Certificate
 metadata:
   name: "{{ template "pulsar.fullname" . }}-ca"
@@ -50,7 +50,7 @@ spec:
     group: cert-manager.io
 ---
 
-apiVersion: cert-manager.io/v1alpha2
+apiVersion: "{{ .Values.certs.internal_issuer.apiVersion }}"
 kind: Issuer
 metadata:
   name: "{{ template "pulsar.fullname" . }}-{{ .Values.certs.internal_issuer.component }}-ca-issuer"
diff --git a/charts/pulsar/templates/tls-certs-internal.yaml b/charts/pulsar/templates/tls-certs-internal.yaml
index 867a563..dc6112e 100644
--- a/charts/pulsar/templates/tls-certs-internal.yaml
+++ b/charts/pulsar/templates/tls-certs-internal.yaml
@@ -21,7 +21,7 @@
 {{- if .Values.certs.internal_issuer.enabled }}
 
 {{- if .Values.tls.proxy.enabled }}
-apiVersion: cert-manager.io/v1alpha2
+apiVersion: "{{ .Values.certs.internal_issuer.apiVersion }}"
 kind: Certificate
 metadata:
   name: "{{ template "pulsar.fullname" . }}-{{ .Values.tls.proxy.cert_name }}"
@@ -63,7 +63,7 @@ spec:
 {{- end }}
 
 {{- if or .Values.tls.broker.enabled (or .Values.tls.bookie.enabled .Values.tls.zookeeper.enabled) }}
-apiVersion: cert-manager.io/v1alpha2
+apiVersion: "{{ .Values.certs.internal_issuer.apiVersion }}"
 kind: Certificate
 metadata:
   name: "{{ template "pulsar.fullname" . }}-{{ .Values.tls.broker.cert_name }}"
@@ -105,7 +105,7 @@ spec:
 {{- end }}
 
 {{- if or .Values.tls.bookie.enabled .Values.tls.zookeeper.enabled }}
-apiVersion: cert-manager.io/v1alpha2
+apiVersion: "{{ .Values.certs.internal_issuer.apiVersion }}"
 kind: Certificate
 metadata:
   name: "{{ template "pulsar.fullname" . }}-{{ .Values.tls.bookie.cert_name }}"
@@ -146,7 +146,7 @@ spec:
 {{- end }}
 
 {{- if .Values.tls.zookeeper.enabled }}
-apiVersion: cert-manager.io/v1alpha2
+apiVersion: "{{ .Values.certs.internal_issuer.apiVersion }}"
 kind: Certificate
 metadata:
   name: "{{ template "pulsar.fullname" . }}-{{ .Values.tls.autorecovery.cert_name }}"
@@ -184,7 +184,7 @@ spec:
     # if you are using an external issuer, change this to that issuer group.
     group: cert-manager.io
 ---
-apiVersion: cert-manager.io/v1alpha2
+apiVersion: "{{ .Values.certs.internal_issuer.apiVersion }}"
 kind: Certificate
 metadata:
   name: "{{ template "pulsar.fullname" . }}-{{ .Values.tls.toolset.cert_name }}"
@@ -222,7 +222,7 @@ spec:
     # if you are using an external issuer, change this to that issuer group.
     group: cert-manager.io
 ---
-apiVersion: cert-manager.io/v1alpha2
+apiVersion: "{{ .Values.certs.internal_issuer.apiVersion }}"
 kind: Certificate
 metadata:
   name: "{{ template "pulsar.fullname" . }}-{{ .Values.tls.zookeeper.cert_name }}"
diff --git a/charts/pulsar/values.yaml b/charts/pulsar/values.yaml
index edfbebc..ef84963 100644
--- a/charts/pulsar/values.yaml
+++ b/charts/pulsar/values.yaml
@@ -256,6 +256,7 @@ auth:
 ## for components within a Pulsar cluster
 certs:
   internal_issuer:
+    apiVersion: cert-manager.io/v1alpha2
     enabled: false
     component: internal-cert-issuer
     type: selfsigning