diff --git a/package.json b/package.json
index ce3125d..1186425 100644
--- a/package.json
+++ b/package.json
@@ -30,7 +30,7 @@
     "debug": "^2.1.3",
     "emailjs": "^1.0.1",
     "engine.io": "^1.6.3",
-    "engine.io-client": "^1.6.3",
+    "engine.io-client": "^3.1.1",
     "errorhandler": "^1.4.2",
     "express": "^4.12.3",
     "helmet": "^0.15.0",