diff --git a/demo/package.json b/demo/package.json
index 3fb42a2..b4e4b42 100644
--- a/demo/package.json
+++ b/demo/package.json
@@ -5,7 +5,7 @@
   "main": "app.js",
   "dependencies": {
     "express": "^4.14.0",
-    "socket.io": "^3.0.0",
+    "socket.io": "^4.8.0",
     "snyk": "^1.189.0"
   },
   "scripts": {