diff --git a/FAQ-and-Tips.md b/FAQ-and-Tips.md
index 75e2b31..1526b4e 100644
--- a/FAQ-and-Tips.md
+++ b/FAQ-and-Tips.md
@@ -92,7 +92,7 @@ edit the crontab file `nano cron/sa-learn`:
 
 with plain docker-compose:
 ```docker-compose
-version: "3.3"
+version: "2"
 
 services:
   mail: