diff --git a/project/infrastructure/authelia/authelia.yml b/project/infrastructure/authelia/authelia.yml
index 5023410..643c29b 100644
--- a/project/infrastructure/authelia/authelia.yml
+++ b/project/infrastructure/authelia/authelia.yml
@@ -14,6 +14,8 @@ services:
       service: default
     container_name: authelia
     image: authelia/authelia:latest
+    ports:
+      - 9959:9959 # metrics prometheus
     expose:
       - 9091
     secrets: [JWT_SECRET, SESSION_SECRET, STORAGE_PASSWORD, STORAGE_ENCRYPTION_KEY]