diff --git a/package.json b/package.json
index 9b0bfb1796122f5bf54d29ad83a0d2ee8d301ece..1b9d2a049e7bf94bbc3ebdb95db5e7b3e090bfeb 100644
--- a/package.json
+++ b/package.json
@@ -104,7 +104,7 @@
     "rxjs": "^5.5.0",
     "state-switch": "^0.2.0",
     "watchdog": "^0.3.0",
-    "ws": "^3.2.0",
+    "ws": "^4.0.0",
     "xml2js": "^0.4.0"
   },
   "devDependencies": {