diff --git a/argocd/ingress.yaml b/argocd/ingress.yaml
index b2fce0e..58f9718 100644
--- a/argocd/ingress.yaml
+++ b/argocd/ingress.yaml
@@ -4,7 +4,7 @@ metadata:
   name: argocd-server-ingress
   annotations:
     nginx.ingress.kubernetes.io/rewrite-target: /
-    cert-manager.io/cluster-issuer: lets-encrypt
+    cert-manager.io/cluster-issuer: prod-cluster-issuer
   namespace: argocd
 spec:
   ingressClassName: nginx