diff --git a/helm/templates/certbot.yaml b/helm/templates/certbot.yaml
index f8041f0..06ec9af 100644
--- a/helm/templates/certbot.yaml
+++ b/helm/templates/certbot.yaml
@@ -30,7 +30,7 @@ spec:
           mountPath: /etc/ssl
       containers:
       - name: ssl-secret-creation
-        image: bitnami/kubectl:latest
+        image: bitnami/kubectl:1.20
         command: ["/bin/sh", "-c"]
         args:
         - |
@@ -233,7 +233,7 @@ metadata:
   namespace: cloud-native-workstation
 ---
 kind: RoleBinding
-apiVersion: rbac.authorization.k8s.io/v1beta1
+apiVersion: rbac.authorization.k8s.io/v1
 metadata:
   name: ssl
   namespace: cloud-native-workstation