diff --git a/infrastructure/07-certmanager/dns-issuer.yaml b/infrastructure/07-certmanager/dns-issuer.yaml
index 9c987e1..ee5e95c 100644
--- a/infrastructure/07-certmanager/dns-issuer.yaml
+++ b/infrastructure/07-certmanager/dns-issuer.yaml
@@ -15,7 +15,7 @@ spec:
     solvers:
       - dns01:
           webhook:
-            groupName: acme.steffenillium.de
+            groupName: cert-manager.io
             solverName: ionos
             config:
               apiUrl: https://api.hosting.ionos.com/dns/v1