diff --git a/cluster/kube/cluster.libsonnet b/cluster/kube/cluster.libsonnet
index 8305033..0701305 100644
--- a/cluster/kube/cluster.libsonnet
+++ b/cluster/kube/cluster.libsonnet
@@ -127,7 +127,7 @@
                     verbs: ["*"],
                 },
                 {
-                    apiGroups: ["certmanager.k8s.io"],
+                    apiGroups: ["cert-manager.io/v1"],
                     resources: ["certificates"],
                     verbs: ["*"],
                 },
@@ -205,7 +205,9 @@
                     privateKeySecretRef: {
                         name: "letsencrypt-prod"
                     },
-                    http01: {},
+                    solvers: [
+                        { http01: { ingress: {} } },
+                    ]
                 },
             },
         },