diff --git a/updatebot/config.yml b/updatebot/config.yml
index f956eb7..5842e1c 100644
--- a/updatebot/config.yml
+++ b/updatebot/config.yml
@@ -102,6 +102,7 @@ projects:
   images:
   - name: authelia
     image: ghcr.io/dani-garcia/vaultwarden
+    tag_format: '{version}-alpine'
     source:
       kind: github
       organization: dani-garcia