diff --git a/package.json b/package.json
index 88ea388..361fd36 100644
--- a/package.json
+++ b/package.json
@@ -12,7 +12,7 @@
   "dependencies": {
     "bower": "~1.8.0",
     "bower-installer": "~1.2.0",
-    "express": "3.4.5",
+    "express": "4.17.1",
     "gulp": "~3.9.0",
     "gulp-add-src": "~0.2.0",
     "gulp-angular-htmlify": "^2.3.0",