diff --git a/package.json b/package.json
index 399e2ac..411d413 100644
--- a/package.json
+++ b/package.json
@@ -27,7 +27,7 @@
   ],
   "dependencies": {
     "each-series": "^0.2.0",
-    "mongodb-core": "1.1.9",
+    "mongodb-core": "1.1.33",
     "once": "^1.3.1",
     "parse-mongo-url": "^1.1.0",
     "pump": "^1.0.0",