diff --git a/package.json b/package.json
index 9ef215c..a3d11a6 100644
--- a/package.json
+++ b/package.json
@@ -10,7 +10,7 @@
     "readable-stream": "1"
   },
   "devDependencies": {
-    "bluebird": "2",
+    "bluebird": "3.1.2",
     "istanbul": "0",
     "mocha": "2",
     "stream-to-array": "2"