diff --git a/demo/public/manifest.json b/demo/public/manifest.json
index ce52141bda..f364cab750 100644
--- a/demo/public/manifest.json
+++ b/demo/public/manifest.json
@@ -7,22 +7,26 @@
     {
       "src": "/static/icons/favicon-192x192.png",
       "sizes": "192x192",
-      "type": "image/png"
+      "type": "image/png",
+      "purpose": "maskable any"
     },
     {
       "src": "/static/icons/favicon-384x384.png",
       "sizes": "384x384",
-      "type": "image/png"
+      "type": "image/png",
+      "purpose": "maskable any"
     },
     {
       "src": "/static/icons/favicon-512x512.png",
       "sizes": "512x512",
-      "type": "image/png"
+      "type": "image/png",
+      "purpose": "maskable any"
     },
     {
       "src": "/static/icons/favicon-1024x1024.png",
       "sizes": "1024x1024",
-      "type": "image/png"
+      "type": "image/png",
+      "purpose": "maskable any"
     }
   ],
   "lang": "en-US",