diff --git a/static/favicon/site.webmanifest b/static/favicon/site.webmanifest
deleted file mode 100644
index bc4cde1..0000000
--- a/static/favicon/site.webmanifest
+++ /dev/null
@@ -1,19 +0,0 @@
-{
-    "name": "",
-    "short_name": "",
-    "icons": [
-        {
-            "src": "/favicon/android-chrome-192x192.png",
-            "sizes": "192x192",
-            "type": "image/png"
-        },
-        {
-            "src": "/favicon/android-chrome-512x512.png",
-            "sizes": "512x512",
-            "type": "image/png"
-        }
-    ],
-    "theme_color": "#e42a6d",
-    "background_color": "#ffffff",
-    "display": "standalone"
-}
diff --git a/templates/head_common.html b/templates/head_common.html
index 2bcedfa..b537532 100644
--- a/templates/head_common.html
+++ b/templates/head_common.html
@@ -38,7 +38,6 @@
   href="/njump/static/favicon/event/favicon-16x16.png?v=2"
 />
 {{end}}
-<link rel="manifest" href="/njump/static/favicon/site.webmanifest" />
 <meta name="theme-color" content="#e42a6d" />
 <script src="https://unpkg.com/hyperscript.org@0.9.12"></script>
 <script type="text/hyperscript">