diff --git a/prometheus-borg-exporter.timer b/prometheus-borg-exporter.timer
index f7bd688..9a826c0 100644
--- a/prometheus-borg-exporter.timer
+++ b/prometheus-borg-exporter.timer
@@ -2,7 +2,7 @@
 Description=Prometheus Borg Exporter Timer
 
 [Timer]
-OnCalendar=daily
+OnCalendar=*-*-* 08:00:00
 
 [Install]
 WantedBy=timers.target