diff --git a/package.json b/package.json
old mode 100755
new mode 100644
index 4cc1ce1..b88f51b
--- a/package.json
+++ b/package.json
@@ -15,7 +15,7 @@
   },
   "dependencies": {
     "express": "4.17.1",
-    "socket.io": "2.3.0"
+    "socket.io": "2.5.0"
   },
   "devDependencies": {
     "@babel/cli": "7.8.3",