diff --git a/package.json b/package.json
index ac4b016..a23de20 100644
--- a/package.json
+++ b/package.json
@@ -16,7 +16,7 @@
     "npm": ">= 1.0.0"
   },
   "dependencies": {
-    "express": "~3.4.4"
+    "express": "~4.17.1"
   },
   "devDependencies": {},
   "bundleDependencies": [],