diff --git a/target/supervisor/conf.d/supervisor-app.conf b/target/supervisor/conf.d/supervisor-app.conf
index 7fad4b31..23ef7204 100644
--- a/target/supervisor/conf.d/supervisor-app.conf
+++ b/target/supervisor/conf.d/supervisor-app.conf
@@ -108,7 +108,7 @@ command=/usr/bin/fetchmail -f /etc/fetchmailrc -v --nodetach --daemon %(ENV_FETC
 
 [program:postfix]
 startsecs=0
-stopwaitsecs=20
+stopwaitsecs=55
 autostart=false
 autorestart=true
 stdout_logfile=/var/log/supervisor/%(program_name)s.log