diff --git a/ch17/message-board/package.json b/ch17/message-board/package.json
index b608401..d1fa336 100644
--- a/ch17/message-board/package.json
+++ b/ch17/message-board/package.json
@@ -28,7 +28,7 @@
     "express": "4.13.1",
     "express-validator": "2.13.0",
     "hbs": "4.0.0",
-    "mongodb": "2.2.25",
+    "mongodb": "3.6.1",
     "morgan": "1.6.1",
     "react": "15.5.4",
     "react-dom": "15.5.4"