diff --git a/examples/chat/package.json b/examples/chat/package.json
index 0372c5e7bc..d4511eafab 100644
--- a/examples/chat/package.json
+++ b/examples/chat/package.json
@@ -7,7 +7,7 @@
   "private": true,
   "license": "BSD",
   "dependencies": {
-    "express": "4.13.4"
+    "express": "4.17.3"
   },
   "scripts": {
     "start": "node index.js"