diff --git a/compose.yml b/compose.yml
index 7b77fc1..8522129 100644
--- a/compose.yml
+++ b/compose.yml
@@ -31,7 +31,7 @@ services:
         - coop-cloud.${STACK_NAME}.web.version=xx # @TODO fix me
 
   app:
-    image: invoiceninja/invoiceninja-debian:5
+    image: invoiceninja/invoiceninja-debian:511
     environment:
       - APP_URL
       - APP_KEY_FILE=/run/secrets/app_key