diff --git a/docs/static/img/favicon.ico b/docs/static/img/favicon.ico
new file mode 100644
index 00000000..857fa54c
Binary files /dev/null and b/docs/static/img/favicon.ico differ
diff --git a/docs/static/img/favicon.png b/docs/static/img/favicon.png
deleted file mode 100644
index 92312fea..00000000
Binary files a/docs/static/img/favicon.png and /dev/null differ
diff --git a/mkdocs.yml b/mkdocs.yml
index b49931d9..4a7db366 100644
--- a/mkdocs.yml
+++ b/mkdocs.yml
@@ -13,7 +13,7 @@ theme:
   language: en
   custom_dir: docs/_overrides
   logo: static/img/ntfy.png
-  favicon: static/img/favicon.png
+  favicon: static/img/favicon.ico
   include_search_page: false
   search_index_only: true
   palette:
diff --git a/web/public/index.html b/web/public/index.html
index 4dd8ef21..84832972 100644
--- a/web/public/index.html
+++ b/web/public/index.html
@@ -15,7 +15,7 @@
   <meta name="apple-mobile-web-app-status-bar-style" content="#317f6f">
 
   <!-- Favicon, see favicon.io -->
-  <link rel="icon" type="image/png" href="%PUBLIC_URL%/static/img/favicon.png">
+  <link rel="icon" type="image/png" href="%PUBLIC_URL%/static/img/favicon.ico">
 
   <!-- Previews in Google, Slack, WhatsApp, etc. -->
   <meta property="og:type" content="website" />
diff --git a/web/public/static/img/favicon.ico b/web/public/static/img/favicon.ico
new file mode 100644
index 00000000..857fa54c
Binary files /dev/null and b/web/public/static/img/favicon.ico differ
diff --git a/web/public/static/img/favicon.png b/web/public/static/img/favicon.png
deleted file mode 100644
index 92312fea..00000000
Binary files a/web/public/static/img/favicon.png and /dev/null differ