diff --git a/package.json b/package.json
index f59416e..6dfdd33 100644
--- a/package.json
+++ b/package.json
@@ -10,7 +10,7 @@
     "spdy-push": "^1.0.0"
   },
   "devDependencies": {
-    "bluebird": "^2.3.4",
+    "bluebird": "^3.1.4",
     "istanbul": "0",
     "mocha": "1",
     "polyfills": "^1.5.0",