diff --git a/argocd-nginx/overlays/test/argocd-ingress.yaml b/argocd-nginx/overlays/test/argocd-ingress.yaml
index e33dcca..e283f08 100644
--- a/argocd-nginx/overlays/test/argocd-ingress.yaml
+++ b/argocd-nginx/overlays/test/argocd-ingress.yaml
@@ -4,7 +4,7 @@ metadata:
   name: argocd-ingress
   namespace: argocd
   annotations:
-    cert-manager.io/issuer: "lets-encrypt"
+    cert-manager.io/issuer: "letsencrypt"
     acme.cert-manager.io/http01-ingress-class: nginx
     acme.cert-manager.io/http01-edit-in-place: "false"
     nginx.ingress.kubernetes.io/from-to-www-redirect: "false"