diff --git a/public/js/version-manager.js b/public/js/version-manager.js
index 79739cb3..7849c878 100644
--- a/public/js/version-manager.js
+++ b/public/js/version-manager.js
@@ -52,7 +52,8 @@ class VersionManager {
 
   async registerServiceWorker() {
     try {
-      const registration = await navigator.serviceWorker.register('/service-worker.js');
+      // Cache-bust service worker to force update: v0.1.4 Phase 2 launch
+      const registration = await navigator.serviceWorker.register('/service-worker.js?v=0.1.4');
       this.serviceWorker = registration;
       console.log('[VersionManager] Service worker registered');