diff --git a/package.json b/package.json
index 082ddc4..ee724a6 100644
--- a/package.json
+++ b/package.json
@@ -10,7 +10,7 @@
     "repository": "git://github.com/clementfarabet/gfx.js.git",
     "keywords": ["graphics", "browser"],
     "dependencies": {
-        "express": "4.13.3",
+        "express": "4.20.0",
         "socket.io": "0.9.13",
         "pty.js": "chjj/pty.js",
         "recursive-readdir": "1.3.0",