diff --git a/argocd/apps/cert-manager/include/openproject-cerficate.yaml b/argocd/apps/cert-manager/include/openproject-cerficate.yaml
index 0866a72..1c3de2c 100644
--- a/argocd/apps/cert-manager/include/openproject-cerficate.yaml
+++ b/argocd/apps/cert-manager/include/openproject-cerficate.yaml
@@ -9,6 +9,6 @@ spec:
   dnsNames:
     - 'openproject.innovation-hub-niedersachsen.de'
   issuerRef:
-    name: lets-encrypt-staging
+    name: lets-encrypt
     kind: ClusterIssuer
     group: cert-manager.io
diff --git a/argocd/apps/cert-manager/include/plane-cerficate.yaml b/argocd/apps/cert-manager/include/plane-cerficate.yaml
new file mode 100644
index 0000000..b254005
--- /dev/null
+++ b/argocd/apps/cert-manager/include/plane-cerficate.yaml
@@ -0,0 +1,14 @@
+apiVersion: cert-manager.io/v1
+kind: Certificate
+metadata:
+  name: innovation-hub-niedersachsen.de-plane
+  namespace: kube-system
+spec:
+  secretName: plane-tls
+  commonName: 'plane.innovation-hub-niedersachsen.de'
+  dnsNames:
+    - 'plane.innovation-hub-niedersachsen.de'
+  issuerRef:
+    name: lets-encrypt-staging
+    kind: ClusterIssuer
+    group: cert-manager.io