diff --git a/systemd/vdirsyncer@.timer b/systemd/vdirsyncer@.timer
index d7409ec..398a05b 100644
--- a/systemd/vdirsyncer@.timer
+++ b/systemd/vdirsyncer@.timer
@@ -5,7 +5,7 @@ Description=Sync calendar %i every 5 minutes with vdirsyncer
 OnCalendar=*-*-* *:5/10:00
 FixedRandomDelay=true
 AccuracySec=30s
-RandomizedDelaySec=2.5m
+RandomizedDelaySec=1m
 Persistent=yes
 
 [Install]