diff --git a/templates/usr/local/lib/systemd/system/chmod_chown_sftp_uploads.timer.j2 b/templates/usr/local/lib/systemd/system/chmod_chown_sftp_uploads.timer.j2
index 59e2b47477111ba5632ad8db46076545abd31803..a83e68dd74a6ef5c955e7d82db956cfccae232ed 100644
--- a/templates/usr/local/lib/systemd/system/chmod_chown_sftp_uploads.timer.j2
+++ b/templates/usr/local/lib/systemd/system/chmod_chown_sftp_uploads.timer.j2
@@ -2,8 +2,7 @@
 Description=timer: set correct permissions for SIPs that were uploaded via SFTP
 
 [Timer]
-OnActiveSec=5min
-OnBootSec=1min
+OnCalendar=*:0/5
 #When activated, it triggers the service immediately if it missed the last start time, for example due to the system being powered off
 Persistent=true
 #Unit to activate when the timer elapses. (default is set to the same name as the timer unit, except for the suffix)