diff --git a/update-notify.timer b/update-notify.timer
index 43b8989..20db8f3 100644
--- a/update-notify.timer
+++ b/update-notify.timer
@@ -3,7 +3,7 @@ Description=Run update-notify every 6 hours
 
 [Timer]
 OnBootSec=5min
-OnUnitActiveSec=6h
+OnUnitActiveSec=12h
 Persistent=true
 
 [Install]