diff --git a/crawler/package.json b/crawler/package.json
index d6002c6..581df0f 100644
--- a/crawler/package.json
+++ b/crawler/package.json
@@ -7,7 +7,7 @@
     "start": "node app.js"
   },
   "dependencies": {
-    "express": "3.4.8",
+    "express": "4.17.1",
     "feedparser":"0.16.6",
     "request":"2.33.0",
     "mongoose":"3.8.7",