diff --git a/app.js b/app.js
index fdab7b8..7550c23 100644
--- a/app.js
+++ b/app.js
@@ -70,6 +70,9 @@ class Setup {
           '/sw.js',
           {scope: '/'}
         )
+      if (registration.waiting) {
+        registration.active.postMessage(['skipWaiting'])
+      }
     } catch (err) {
       console.error(
         'error registering service worker', err
diff --git a/sw.js b/sw.js
index 7175251..b26cfbe 100644
--- a/sw.js
+++ b/sw.js
@@ -61,4 +61,10 @@ self.addEventListener('fetch', event => {
 
 self.addEventListener('activate', event => {
   event.waitUntil(clients.claim())
+})
+
+self.addEventListener('message', e => {
+  if (Array.isArray(e.data) && e.data[0] === 'skipWaiting') {
+    self.skipWaiting()
+  }
 })
\ No newline at end of file