diff --git a/package.json b/package.json
index f51a3c1..bcc3825 100644
--- a/package.json
+++ b/package.json
@@ -6,9 +6,9 @@
     "start": "node app"
   },
   "dependencies": {
-    "express": "3.1.0",
+    "express": "4.16.0",
     "ejs": "*",
-    "less-middleware": "~0.1",
+    "less-middleware": "~2.0.0",
     "socket.io": "~0.9",
     "express-uglify": "*",
     "lodash": "~1.1.1",