diff --git a/infra/longhorn/templates/ingress.yaml b/infra/longhorn/templates/ingress.yaml
index 412f930..b8085bb 100644
--- a/infra/longhorn/templates/ingress.yaml
+++ b/infra/longhorn/templates/ingress.yaml
@@ -25,8 +25,8 @@ metadata:
 spec:
   secretName: longhorn-tls
   issuerRef:
-    name: letsencrypt-production
-    kind: ClusterIssuer
+    name: vault-issuer
+    namespace: cert-manager
   commonName: "longhorn.infra.durp.info"
   dnsNames:
     - "longhorn.infra.durp.info"