diff --git a/challenge-33/server/package.json b/challenge-33/server/package.json
index f379b3d2a7..0ec1b458f6 100644
--- a/challenge-33/server/package.json
+++ b/challenge-33/server/package.json
@@ -4,6 +4,6 @@
   "dependencies": {
     "body-parser": "^1.14.2",
     "cors": "^2.7.1",
-    "express": "^4.13.3"
+    "express": "^5.0.0"
   }
 }