diff --git a/index.html b/index.html
index 9201ea6..61c14c4 100644
--- a/index.html
+++ b/index.html
@@ -89,9 +89,10 @@
           'https://github.com/sponsors/shinokada',
           'https://developer.mozilla.org/en-US/docs/Web/Progressive_web_apps',
           'https://twitter.com/shinokada',
-          'https://www.npmjs.com/package/imgtaggen',
           'http://www.apache.org/licenses/',
+          'https://opensource.org/licenses/MIT',
           'https://github.com/shinokada/imgtaggen',
+          'https://www.npmjs.com/package/imgtaggen',
           'http://imgtaggen.codewithshin.com/'
         ],
         search: 'auto',
diff --git a/public/android-chrome-192x192.png b/public/android-chrome-192x192.png
index bd78b1c..62768a4 100644
Binary files a/public/android-chrome-192x192.png and b/public/android-chrome-192x192.png differ
diff --git a/public/android-chrome-512x512.png b/public/android-chrome-512x512.png
index ae4f822..fd294e8 100644
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diff --git a/public/apple-touch-icon.png b/public/apple-touch-icon.png
index c42e31b..f89458a 100644
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diff --git a/public/favicon-16x16.png b/public/favicon-16x16.png
index 1045b06..0665327 100644
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diff --git a/public/favicon-32x32.png b/public/favicon-32x32.png
index ead0830..cf1a682 100644
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diff --git a/public/favicon.ico b/public/favicon.ico
index 8639249..65d2b99 100644
Binary files a/public/favicon.ico and b/public/favicon.ico differ
diff --git a/public/maskable_icon_x192.png b/public/maskable_icon_x192.png
index 844e565..62768a4 100644
Binary files a/public/maskable_icon_x192.png and b/public/maskable_icon_x192.png differ
diff --git a/service-worker.js b/service-worker.js
index 7293e1f..1d4a285 100644
--- a/service-worker.js
+++ b/service-worker.js
@@ -8,7 +8,7 @@ const APP_PREFIX = 'imgtaggen_';
 // you need to change this version (version_01, version_02…).
 // If you don't change the version, the service worker will give your
 // users the old files!
-const VERSION = 'version_03';
+const VERSION = 'version_04';
 
 // The files to make available for offline use. make sure to add
 // others to this list