diff --git a/package.json b/package.json
index e10686f..911d9be 100644
--- a/package.json
+++ b/package.json
@@ -20,7 +20,7 @@
     "app"
   ],
   "dependencies": {
-    "express": "~3.1.0",
+    "express": "~4.17.1",
     "pg": "~0.14.1",
     "mongodb": "~1.2.14"
   },