diff --git a/package.json b/package.json
index a6e38fa..411729a 100644
--- a/package.json
+++ b/package.json
@@ -9,7 +9,7 @@
     "body-parser": "^1.15.2",
     "crypto-js": "^3.1.6",
     "express": "~4.11.1",
-    "ws": "^1.1.0"
+    "ws": "^7.2.0"
   },
   "engines": {
     "node": ">=4.3.2"