diff --git a/k8s/ingress.yaml b/k8s/ingress.yaml
index 8253a8a..a585e7c 100644
--- a/k8s/ingress.yaml
+++ b/k8s/ingress.yaml
@@ -3,8 +3,13 @@ kind: Ingress
 metadata:
   name: cmsn-b-linh
   annotations:
-    traefik.ingress.kubernetes.io/router.entrypoints: web
+    cert-manager.io/cluster-issuer: letsencrypt-prod
 spec:
+  ingressClassName: traefik
+  tls:
+    - hosts:
+        - cmsn-b-linh.duylai.duckdns.org
+      secretName: cmsn-b-linh-tls
   rules:
     - host: cmsn-b-linh.duylai.duckdns.org
       http: