diff --git a/package.json b/package.json
index 3fcc8f56db..c43fa0bb6e 100644
--- a/package.json
+++ b/package.json
@@ -25,10 +25,10 @@
   },
   "dependencies": {
     "debug": "~2.6.6",
-    "engine.io": "~3.1.0",
+    "engine.io": "~4.0.0",
     "socket.io-adapter": "~1.1.0",
     "socket.io-client": "2.0.4",
-    "socket.io-parser": "~3.1.1"
+    "socket.io-parser": "~3.4.1"
   },
   "devDependencies": {
     "expect.js": "0.3.1",