diff --git a/package.json b/package.json
index 0171e4167..30617055a 100644
--- a/package.json
+++ b/package.json
@@ -123,7 +123,7 @@
     "js-yaml": "3.10.0",
     "mecab-async": "^0.1.0",
     "moji": "^0.5.1",
-    "mongodb": "2.2.31",
+    "mongodb": "2.2.33",
     "monk": "6.0.5",
     "morgan": "1.9.0",
     "ms": "2.0.0",