diff --git a/package.json b/package.json
index 9559522..e27797a 100644
--- a/package.json
+++ b/package.json
@@ -4,7 +4,7 @@
   "dependencies": {
     "ejs": "2.6.1",
     "bower": "1.8.8",
-    "express": "4.16.0"
+    "express": "4.21.0"
   },
   "devDependencies": {
     "autoprefixer-core": "5.2.1",