diff --git a/package.json b/package.json
index 9200809..ae9c18e 100644
--- a/package.json
+++ b/package.json
@@ -23,6 +23,6 @@
   },
   "devDependencies": {
     "dredd": "13.1.1",
-    "mongodb": "3.3.3"
+    "mongodb": "4.0.0"
   }
 }