diff --git a/packages/app/package.json b/packages/app/package.json
index 2a70b5f3..e0451dc7 100644
--- a/packages/app/package.json
+++ b/packages/app/package.json
@@ -40,6 +40,7 @@
     "hls.js": "^1.1.5",
     "howler": "2.2.3",
     "i18next": "21.6.6",
+    "intersection-observer-polyfill": "^0.1.0",
     "js-cookie": "3.0.1",
     "jwt-decode": "3.1.2",
     "less": "4.1.2",
@@ -83,10 +84,10 @@
     "@typescript-eslint/eslint-plugin": "^4.29.0",
     "@vitejs/plugin-react-refresh": "^1.3.6",
     "corenode": "0.28.26",
+    "cors": "2.8.5",
     "cross-env": "^7.0.3",
     "express": "^4.17.1",
     "typescript": "^4.3.5",
-    "cors": "2.8.5",
     "vite": "2.9.9"
   }
 }