diff --git a/certmanager-netcup/main.yaml b/certmanager-netcup/main.yaml
index b92ea16..0def102 100644
--- a/certmanager-netcup/main.yaml
+++ b/certmanager-netcup/main.yaml
@@ -181,7 +181,7 @@ metadata:
     release: cert-manager-webhook-netcup
   name: cert-manager-webhook-netcup
 spec:
-  replicas: null
+  replicas: 1
   selector:
     matchLabels:
       app: cert-manager-webhook-netcup