diff --git a/public/service-worker.js b/public/service-worker.js
index e5cbf68..4f92662 100644
--- a/public/service-worker.js
+++ b/public/service-worker.js
@@ -1,18 +1,18 @@
-const CACHE_NAME = 'static-cache-v18';
+const CACHE_NAME = 'static-cache-v19';
 const FILES_TO_CACHE = [
   '/favicon.ico',
   '/offline.html',
-  '/static/v18/css/materialize.min.css',
-  '/static/v18/css/material-icons.css',
-  '/static/v18/css/local.css',
-  '/static/v18/fonts/MaterialIcons-Regular.woff2',
-  '/static/v18/fonts/MaterialIcons-Regular.woff',
-  '/static/v18/fonts/MaterialIcons-Regular.ttf',
-  '/static/v18/js/jquery-3.4.1.min.js',
-  '/static/v18/js/materialize.min.js',
-  '/static/v18/js/travelynx-actions.min.js',
-  '/static/v18/js/autocomplete.min.js',
-  '/static/v18/js/geolocation.min.js',
+  '/static/v19/css/materialize.min.css',
+  '/static/v19/css/material-icons.css',
+  '/static/v19/css/local.css',
+  '/static/v19/fonts/MaterialIcons-Regular.woff2',
+  '/static/v19/fonts/MaterialIcons-Regular.woff',
+  '/static/v19/fonts/MaterialIcons-Regular.ttf',
+  '/static/v19/js/jquery-3.4.1.min.js',
+  '/static/v19/js/materialize.min.js',
+  '/static/v19/js/travelynx-actions.min.js',
+  '/static/v19/js/autocomplete.min.js',
+  '/static/v19/js/geolocation.min.js',
 ];
 
 self.addEventListener('install', (evt) => {
diff --git a/public/static/css/material-icons.css b/public/static/css/material-icons.css
index e2de606..36185f0 100644
--- a/public/static/css/material-icons.css
+++ b/public/static/css/material-icons.css
@@ -2,12 +2,12 @@
   font-family: 'Material Icons';
   font-style: normal;
   font-weight: 400;
-  src: url(/static/v18/fonts/MaterialIcons-Regular.eot); /* For IE6-8 */
+  src: url(/static/v19/fonts/MaterialIcons-Regular.eot); /* For IE6-8 */
   src: local('Material Icons'),
        local('MaterialIcons-Regular'),
-       url(/static/v18/fonts/MaterialIcons-Regular.woff2) format('woff2'),
-       url(/static/v18/fonts/MaterialIcons-Regular.woff) format('woff'),
-       url(/static/v18/fonts/MaterialIcons-Regular.ttf) format('truetype');
+       url(/static/v19/fonts/MaterialIcons-Regular.woff2) format('woff2'),
+       url(/static/v19/fonts/MaterialIcons-Regular.woff) format('woff'),
+       url(/static/v19/fonts/MaterialIcons-Regular.ttf) format('truetype');
 }
 
 .material-icons {
diff --git a/public/static/manifest.json b/public/static/manifest.json
index 9fcb00e..30116d5 100644
--- a/public/static/manifest.json
+++ b/public/static/manifest.json
@@ -3,27 +3,27 @@
   "short_name": "Travelynx",
   "scope": "/",
   "icons": [{
-    "src": "/static/v18/icons/icon-128x128.png",
+    "src": "/static/v19/icons/icon-128x128.png",
       "sizes": "128x128",
       "type": "image/png"
     }, {
-      "src": "/static/v18/icons/icon-144x144.png",
+      "src": "/static/v19/icons/icon-144x144.png",
       "sizes": "144x144",
       "type": "image/png"
     }, {
-      "src": "/static/v18/icons/icon-152x152.png",
+      "src": "/static/v19/icons/icon-152x152.png",
       "sizes": "152x152",
       "type": "image/png"
     }, {
-      "src": "/static/v18/icons/icon-192x192.png",
+      "src": "/static/v19/icons/icon-192x192.png",
       "sizes": "192x192",
       "type": "image/png"
     }, {
-      "src": "/static/v18/icons/icon-256x256.png",
+      "src": "/static/v19/icons/icon-256x256.png",
       "sizes": "256x256",
       "type": "image/png"
     }, {
-      "src": "/static/v18/icons/icon-512x512.png",
+      "src": "/static/v19/icons/icon-512x512.png",
       "sizes": "512x512",
       "type": "image/png"
     }],
diff --git a/public/static/v17 b/public/static/v19
similarity index 100%
rename from public/static/v17
rename to public/static/v19
diff --git a/scripts/asset-release b/scripts/asset-release
index 5a65bca..20d08e7 100755
--- a/scripts/asset-release
+++ b/scripts/asset-release
@@ -2,16 +2,16 @@
 
 set -ex
 
-current="$(ls -d public/static/v* | tail -n 1 | grep -o '..$')"
+current="$(find -d public/static/v* | tail -n 1 | grep -o '..$')"
 prev=$((current - 1))
 next=$((current + 1))
 
 git mv public/static/v${prev} public/static/v${next}
 
-sed -i "s!/v${current}/!/v${next}/!g" \
+perl -pi -e "s!/v${current}/!/v${next}/!g" \
 	public/service-worker.js public/static/manifest.json \
 	public/static/css/material-icons.css
 
-sed -i "s!static-cache-v${current}!static-cache-v${next}!" public/service-worker.js
+perl -pi -e "s!static-cache-v${current}!static-cache-v${next}!" public/service-worker.js
 
-sed -i "s!av = 'v${current}'!av = 'v${next}'!" templates/layouts/default.html.ep
+perl -pi -e "s!av = 'v${current}'!av = 'v${next}'!" templates/layouts/default.html.ep
diff --git a/templates/layouts/default.html.ep b/templates/layouts/default.html.ep
index fa793c2..fe7a088 100644
--- a/templates/layouts/default.html.ep
+++ b/templates/layouts/default.html.ep
@@ -9,7 +9,7 @@
 	<meta name="apple-mobile-web-app-capable" content="yes">
 	<meta name="apple-mobile-web-app-status-bar-style" content="black">
 	<meta name="apple-mobile-web-app-title" content="Travelynx">
-	% my $av = 'v18'; # asset version
+	% my $av = 'v19'; # asset version
 	<link rel="icon" type="image/png" href="/static/<%= $av %>/icons/icon-16x16.png" sizes="16x16">
 	<link rel="icon" type="image/png" href="/static/<%= $av %>/icons/icon-32x32.png" sizes="32x32">
 	<link rel="icon" type="image/png" href="/static/<%= $av %>/icons/icon-96x96.png" sizes="96x96">