diff --git a/deploy/complete/helm-chart/mushop/templates/cluster-issuers.yaml b/deploy/complete/helm-chart/mushop/templates/cluster-issuers.yaml
index cd48dc38..e2f76a9d 100644
--- a/deploy/complete/helm-chart/mushop/templates/cluster-issuers.yaml
+++ b/deploy/complete/helm-chart/mushop/templates/cluster-issuers.yaml
@@ -18,7 +18,7 @@ spec:
     solvers:
     - http01:
         ingress:
-          class: nginx
+          ingressClassName: nginx
 ---
 apiVersion: cert-manager.io/v1
 kind: ClusterIssuer
@@ -36,7 +36,7 @@ spec:
     solvers:
     - http01:
         ingress:
-          class: nginx
+          ingressClassName: nginx
 ---
 apiVersion: cert-manager.io/v1
 kind: ClusterIssuer
diff --git a/deploy/complete/kubernetes/ingress/mushop-issuer.yaml b/deploy/complete/kubernetes/ingress/mushop-issuer.yaml
index 6cd23ddd..cefe6afb 100644
--- a/deploy/complete/kubernetes/ingress/mushop-issuer.yaml
+++ b/deploy/complete/kubernetes/ingress/mushop-issuer.yaml
@@ -1,5 +1,5 @@
 ---
-apiVersion: cert-manager.io/v1alpha2
+apiVersion: cert-manager.io/v1
 kind: ClusterIssuer
 metadata:
   name: letsencrypt-prod
@@ -15,9 +15,9 @@ spec:
     solvers:
     - http01:
         ingress:
-          class: nginx
+          ingressClassName: nginx
 ---
-apiVersion: cert-manager.io/v1alpha2
+apiVersion: cert-manager.io/v1
 kind: ClusterIssuer
 metadata:
   name: letsencrypt-staging
@@ -33,9 +33,9 @@ spec:
     solvers:
     - http01:
         ingress:
-          class: nginx
+          ingressClassName: nginx
 ---
-apiVersion: cert-manager.io/v1alpha2
+apiVersion: cert-manager.io/v1
 kind: ClusterIssuer
 metadata:
   name: selfsigned
diff --git a/deploy/complete/kubernetes/ingress/mushop-test.yaml b/deploy/complete/kubernetes/ingress/mushop-test.yaml
index 9daffda3..f98b90ae 100644
--- a/deploy/complete/kubernetes/ingress/mushop-test.yaml
+++ b/deploy/complete/kubernetes/ingress/mushop-test.yaml
@@ -1,4 +1,4 @@
-apiVersion: networking.k8s.io/v1beta1
+apiVersion: networking.k8s.io/v1
 kind: Ingress
 metadata:
   name: mushop-test