diff --git a/static/js/sw.js b/static/js/sw.js
index 8ccdeca..d52308e 100644
--- a/static/js/sw.js
+++ b/static/js/sw.js
@@ -2,7 +2,7 @@
  * diora service worker — caches the app shell for offline use.
  */
 
-const CACHE = 'diora-v2';
+const CACHE = 'diora-v3';
 const PODCAST_CACHE = 'diora-podcast-v1';
 const SHELL = [
   '/',