diff --git a/htdocs/assets/coverimage-httpstream.png b/htdocs/assets/coverimage-httpstream.png
index c7fa8fb..1c28255 100644
Binary files a/htdocs/assets/coverimage-httpstream.png and b/htdocs/assets/coverimage-httpstream.png differ
diff --git a/htdocs/assets/coverimage-loading.png b/htdocs/assets/coverimage-loading.png
new file mode 100644
index 0000000..743a2a5
Binary files /dev/null and b/htdocs/assets/coverimage-loading.png differ
diff --git a/htdocs/assets/coverimage-notavailable.png b/htdocs/assets/coverimage-notavailable.png
index d5a9f61..1cbc16f 100644
Binary files a/htdocs/assets/coverimage-notavailable.png and b/htdocs/assets/coverimage-notavailable.png differ
diff --git a/htdocs/sw.js b/htdocs/sw.js
index 471406c..49462fe 100644
--- a/htdocs/sw.js
+++ b/htdocs/sw.js
@@ -1,4 +1,4 @@
-var CACHE = 'myMPD-cache-v4.3.1';
+var CACHE = 'myMPD-cache-v4.4.0';
 var urlsToCache = [
     '/',
     '/player.html',
@@ -12,6 +12,7 @@ var urlsToCache = [
     '/assets/appicon-512.png',
     '/assets/coverimage-httpstream.png',
     '/assets/coverimage-notavailable.png',
+    '/assets/coverimage-loading.png',
     '/assets/favicon.ico',
     '/assets/MaterialIcons-Regular.eot',
     '/assets/MaterialIcons-Regular.ttf',