diff --git a/argocd/apps/wordpress/wordpress.yaml b/argocd/apps/wordpress/wordpress.yaml
index edd1540..eb55e64 100644
--- a/argocd/apps/wordpress/wordpress.yaml
+++ b/argocd/apps/wordpress/wordpress.yaml
@@ -20,6 +20,8 @@ spec:
           value: 'www.innovation-hub-niedersachsen.de'
         - name: ingress.tls
           value: 'true'
+        - name: ingress.annotations.cert-manager\.io\/cluster-issuer
+          value: lets-encrypt-staging
 #        - name: ingress.annotations.traefik\.ingress\.kubernetes\.io\/router\.entrypoints
 #          value: 'websecure'
 #        - name: ingress.annotations.traefik\.ingress\.kubernetes.io\/router\.tls