diff --git a/CHANGES b/CHANGES
index bb59a9519..26ad63c47 100644
--- a/CHANGES
+++ b/CHANGES
@@ -2561,4 +2561,5 @@
 * Show remaining disk space in usage graph
 * Make users and groups available for the new app link dialog
 * Show swaps in disk graphs
+* disk usage: run once a day
 
diff --git a/src/cron.js b/src/cron.js
index fabbbad74..3058551e0 100644
--- a/src/cron.js
+++ b/src/cron.js
@@ -50,7 +50,8 @@ const gJobs = {
     dockerVolumeCleaner: null,
     dynamicDns: null,
     schedulerSync: null,
-    appHealthMonitor: null
+    appHealthMonitor: null,
+    diskUsage: null
 };
 
 // cron format
@@ -95,6 +96,12 @@ async function startJobs() {
         start: true
     });
 
+    gJobs.diskUsage = new CronJob({
+        cronTime: `00 ${minute} 3 * * *`, // once a day
+        onTick: async () => await safe(cloudron.updateDiskUsage(), { debug }),
+        start: true
+    });
+
     gJobs.diskSpaceChecker = new CronJob({
         cronTime: '00 30 * * * *', // every 30 minutes. if you change this interval, change the notification messages with correct duration
         onTick: async () => await safe(system.checkDiskSpace(), { debug }),