--- dashboard/app.js
+++ dashboard/app.js
@@ -321,7 +321,7 @@
 function renderSummary(allLocks) {
   summaryContainer.replaceChildren();
   if (!isAlive()) return;
-  summaryContainer.innerHTML = ''; // Clear fallback
+  summaryContainer.textContent = ''; // Clear fallback

   const now = nowUnix();
   let active = 0, expired = 0, completed = 0;