diff --git a/examples/21-websockets-server/package.json b/examples/21-websockets-server/package.json
index 8625655b4..dc7634975 100644
--- a/examples/21-websockets-server/package.json
+++ b/examples/21-websockets-server/package.json
@@ -1,5 +1,5 @@
 {
   "dependencies": {
-    "ws": "8.18.3"
+    "ws": "8.21.0"
   }
 }