diff --git a/public/sw.js b/public/sw.js
index a487324..b047ac1 100644
--- a/public/sw.js
+++ b/public/sw.js
@@ -4,7 +4,7 @@
 // API calls always fresh (critical for medical data accuracy)
 // ============================================================
 
-var CACHE_NAME = 'pedscribe-v11';
+var CACHE_NAME = 'pedscribe-v12';
 var SHELL_ASSETS = [
   '/',
   '/index.html',
@@ -66,16 +66,15 @@ self.addEventListener('fetch', function(event) {
     return;
   }
 
-  // Static assets (JS, CSS, icons) — stale-while-revalidate
+  // Static assets (JS, CSS, icons) — network-first so code updates apply immediately
   if (url.pathname.match(/\.(js|css|png|ico|woff2?)$/)) {
     event.respondWith(
-      caches.match(event.request).then(function(cached) {
-        var fetchPromise = fetch(event.request).then(function(response) {
-          var clone = response.clone();
-          caches.open(CACHE_NAME).then(function(cache) { cache.put(event.request, clone); });
-          return response;
-        }).catch(function() { return cached; });
-        return cached || fetchPromise;
+      fetch(event.request).then(function(response) {
+        var clone = response.clone();
+        caches.open(CACHE_NAME).then(function(cache) { cache.put(event.request, clone); });
+        return response;
+      }).catch(function() {
+        return caches.match(event.request);
       })
     );
     return;