diff --git a/sweepjs/examples/websocket/package.json b/sweepjs/examples/websocket/package.json
index d2d6529..d6b5934 100644
--- a/sweepjs/examples/websocket/package.json
+++ b/sweepjs/examples/websocket/package.json
@@ -10,6 +10,6 @@
   "dependencies": {
     "koa": "^1.2",
     "koa-static": "^2.0",
-    "ws": "^1.1"
+    "ws": "^7.2"
   }
 }