diff --git a/migrations/20260201120606-apps-ensure-checklist-properties.js b/migrations/20260201120606-apps-ensure-checklist-properties.js
new file mode 100644
index 000000000..c6a493ba7
--- /dev/null
+++ b/migrations/20260201120606-apps-ensure-checklist-properties.js
@@ -0,0 +1,24 @@
+'use strict';
+
+exports.up = async function (db) {
+    const owner = await db.runSql('SELECT username FROM users WHERE role="owner" LIMIT 1');
+    const ownerUsername = owner[0].username;
+
+    const apps = await db.runSql('SELECT * FROM apps');
+    for (const app of apps) {
+        if (!app.checklistJson) continue;
+
+        const checklist = JSON.parse(app.checklistJson);
+        for (const key in checklist) {
+          if (!checklist[key].acknowledged) continue;
+
+          if (!checklist[key].changedAt) checklist[key].changedAt = Date.now();
+          if (!checklist[key].changedBy) checklist[key].changedBy = ownerUsername;
+        }
+
+        await db.runSql('UPDATE apps SET checklistJson=? WHERE id=?', [ JSON.stringify(checklist), app.id ]);
+    }
+};
+
+exports.down = async function () {
+};