diff --git a/app/caps-controller-manager/config/certmanager/certificate.yaml b/app/caps-controller-manager/config/certmanager/certificate.yaml
index 2c0e245ed..ffcc81068 100644
--- a/app/caps-controller-manager/config/certmanager/certificate.yaml
+++ b/app/caps-controller-manager/config/certmanager/certificate.yaml
@@ -1,6 +1,6 @@
 # The following manifests contain a self-signed issuer CR and a certificate CR.
 # More document can be found at https://docs.cert-manager.io
-apiVersion: cert-manager.io/v1alpha2
+apiVersion: cert-manager.io/v1
 kind: Issuer
 metadata:
   name: selfsigned-issuer
@@ -8,7 +8,7 @@ metadata:
 spec:
   selfSigned: {}
 ---
-apiVersion: cert-manager.io/v1alpha2
+apiVersion: cert-manager.io/v1
 kind: Certificate
 metadata:
   name: serving-cert # this name should match the one appeared in kustomizeconfig.yaml
diff --git a/app/caps-controller-manager/config/default/kustomization.yaml b/app/caps-controller-manager/config/default/kustomization.yaml
index 423bbf8df..806f302ef 100644
--- a/app/caps-controller-manager/config/default/kustomization.yaml
+++ b/app/caps-controller-manager/config/default/kustomization.yaml
@@ -22,7 +22,7 @@ vars:
     objref:
       kind: Certificate
       group: cert-manager.io
-      version: v1alpha2
+      version: v1
       name: serving-cert # this name should match the one in certificate.yaml
     fieldref:
       fieldpath: metadata.namespace
@@ -30,7 +30,7 @@ vars:
     objref:
       kind: Certificate
       group: cert-manager.io
-      version: v1alpha2
+      version: v1
       name: serving-cert # this name should match the one in certificate.yaml
   - name: SERVICE_NAMESPACE # namespace of the service
     objref:
@@ -46,4 +46,4 @@ vars:
       name: webhook-service
 
 configurations:
-  - kustomizeconfig.yaml
\ No newline at end of file
+  - kustomizeconfig.yaml
diff --git a/app/sidero-controller-manager/config/certmanager/certificate.yaml b/app/sidero-controller-manager/config/certmanager/certificate.yaml
index 237c9378d..fac5aa1bb 100644
--- a/app/sidero-controller-manager/config/certmanager/certificate.yaml
+++ b/app/sidero-controller-manager/config/certmanager/certificate.yaml
@@ -1,7 +1,7 @@
 # The following manifests contain a self-signed issuer CR and a certificate CR.
 # More document can be found at https://docs.cert-manager.io
 # WARNING: Targets CertManager 0.11 check https://docs.cert-manager.io/en/latest/tasks/upgrading/index.html for breaking changes
-apiVersion: cert-manager.io/v1alpha2
+apiVersion: cert-manager.io/v1
 kind: Issuer
 metadata:
   name: selfsigned-issuer
@@ -9,7 +9,7 @@ metadata:
 spec:
   selfSigned: {}
 ---
-apiVersion: cert-manager.io/v1alpha2
+apiVersion: cert-manager.io/v1
 kind: Certificate
 metadata:
   name: serving-cert  # this name should match the one appeared in kustomizeconfig.yaml
diff --git a/app/sidero-controller-manager/config/kustomization.yaml b/app/sidero-controller-manager/config/kustomization.yaml
index 343502d6d..2d6c596c0 100644
--- a/app/sidero-controller-manager/config/kustomization.yaml
+++ b/app/sidero-controller-manager/config/kustomization.yaml
@@ -41,7 +41,7 @@ vars:
 #  objref:
 #    kind: Certificate
 #    group: cert-manager.io
-#    version: v1alpha2
+#    version: v1
 #    name: serving-cert # this name should match the one in certificate.yaml
 #  fieldref:
 #    fieldpath: metadata.namespace
@@ -49,7 +49,7 @@ vars:
 #  objref:
 #    kind: Certificate
 #    group: cert-manager.io
-#    version: v1alpha2
+#    version: v1
 #    name: serving-cert # this name should match the one in certificate.yaml
 #- name: SERVICE_NAMESPACE # namespace of the service
 #  objref: