diff --git a/argocd/apps/cert-manager/include/cluster-issuer.yaml b/argocd/apps/cert-manager/include/cluster-issuer.yaml
index e0199a2..a6e59ef 100644
--- a/argocd/apps/cert-manager/include/cluster-issuer.yaml
+++ b/argocd/apps/cert-manager/include/cluster-issuer.yaml
@@ -4,7 +4,7 @@ metadata:
   name: lets-encrypt
 spec:
   acme:
-    server: https://acme-v02.api.letsencrypt.org/directory
+    server: https://acme-staging-v02.api.letsencrypt.org/directory
     privateKeySecretRef:
       name: lets-encrypt
     email: titus.innohubni@outlook.de