diff --git a/argocd/apps/cert-manager/include/mattermost-cerficate.yaml b/argocd/apps/cert-manager/include/mattermost-cerficate.yaml
index 9368ed0..1f60b5a 100644
--- a/argocd/apps/cert-manager/include/mattermost-cerficate.yaml
+++ b/argocd/apps/cert-manager/include/mattermost-cerficate.yaml
@@ -1,14 +1,14 @@
-#apiVersion: cert-manager.io/v1
-#kind: Certificate
-#metadata:
-#  name: innovation-hub-niedersachsen.de-mattermost
-#  namespace: kube-system
-#spec:
-#  secretName: mattermost-tls
-#  commonName: 'mattermost.innovation-hub-niedersachsen.de'
-#  dnsNames:
-#    - 'mattermost.innovation-hub-niedersachsen.de'
-#  issuerRef:
-#    name: lets-encrypt
-#    kind: ClusterIssuer
-#    group: cert-manager.io
+apiVersion: cert-manager.io/v1
+kind: Certificate
+metadata:
+  name: innovation-hub-niedersachsen.de-mattermost
+  namespace: kube-system
+spec:
+  secretName: mattermost-tls
+  commonName: 'mattermost.innovation-hub-niedersachsen.de'
+  dnsNames:
+    - 'mattermost.innovation-hub-niedersachsen.de'
+  issuerRef:
+    name: lets-encrypt
+    kind: ClusterIssuer
+    group: cert-manager.io
diff --git a/argocd/apps/cert-manager/include/www-cerficate.yaml b/argocd/apps/cert-manager/include/www-cerficate.yaml
new file mode 100644
index 0000000..6e7ade9
--- /dev/null
+++ b/argocd/apps/cert-manager/include/www-cerficate.yaml
@@ -0,0 +1,14 @@
+apiVersion: cert-manager.io/v1
+kind: Certificate
+metadata:
+  name: innovation-hub-niedersachsen.de-www
+  namespace: kube-system
+spec:
+  secretName: www-tls
+  commonName: 'www.innovation-hub-niedersachsen.de'
+  dnsNames:
+    - 'www.innovation-hub-niedersachsen.de'
+  issuerRef:
+    name: lets-encrypt
+    kind: ClusterIssuer
+    group: cert-manager.io