diff --git a/package.json b/package.json
index f1c9739..ce34a41 100644
--- a/package.json
+++ b/package.json
@@ -25,7 +25,7 @@
     "koa": "^1.2.0",
     "koa-router": "^5.4.0",
     "koa-static": "^2.0.0",
-    "mongodb": "^2.1.20",
+    "mongodb": "^2.2.31",
     "nodemailer": "^2.4.2",
     "nodemailer-openpgp": "^1.0.2",
     "npmlog": "^4.0.2",