diff --git a/package.json b/package.json
index afd4020..c8f28a3 100644
--- a/package.json
+++ b/package.json
@@ -24,7 +24,7 @@
     "passport-anonymous": "^1.0.1",
     "passport-http": "^0.3.0",
     "request": "^2.81.0",
-    "socket.io": "^2.0.2",
+    "socket.io": "^4.5.1",
     "underscore": "^1.8.3",
     "simple-service-registry": "^0.1.1"
   },