diff --git a/debian/postinst b/debian/postinst
index fa7da52d..8a874197 100755
--- a/debian/postinst
+++ b/debian/postinst
@@ -57,7 +57,10 @@ case "$1" in
 		systemctl daemon-reload
 		systemctl enable spark-update-notifier
 		systemctl start spark-update-notifier
-
+		
+		# like apt-daily.timer
+		systemctl enable spark-update-notifier.timer
+		systemctl start spark-update-notifier.timer
 
 		# Update certain caches
 cp -fv /opt/spark-store/extras/store.spark-app.spark-store.policy /usr/share/polkit-1/actions/store.spark-app.spark-store.policy
diff --git a/pkg/usr/lib/systemd/system/spark-update-notifier.service b/pkg/usr/lib/systemd/system/spark-update-notifier.service
index 62263a13..f497463a 100644
--- a/pkg/usr/lib/systemd/system/spark-update-notifier.service
+++ b/pkg/usr/lib/systemd/system/spark-update-notifier.service
@@ -4,7 +4,6 @@ After=apt-daily.service network.target network-online.target systemd-networkd.se
 
 [Service]
 Type=simple
-RemainAfterExit=yes
 ExecStart=/opt/durapps/spark-store/bin/update-upgrade/ss-update-notifier.sh
 Restart=on-failure
 RestartSec=15  # 可以设置为更长的重试间隔，比如 15 秒或 30 秒
diff --git a/pkg/usr/lib/systemd/system/spark-update-notifier.timer b/pkg/usr/lib/systemd/system/spark-update-notifier.timer
index 214f23dd..ee31299c 100644
--- a/pkg/usr/lib/systemd/system/spark-update-notifier.timer
+++ b/pkg/usr/lib/systemd/system/spark-update-notifier.timer
@@ -2,8 +2,8 @@
 Description=Spark Store update notifier
 
 [Timer]
-OnCalendar=*-*-* 6,18:00
-RandomizedDelaySec=12h
+OnCalendar=*-*-* 6,12,18:00
+RandomizedDelaySec=30m
 Persistent=true
 
 [Install]