diff --git a/package.json b/package.json
index 088db10..8ca0f4a 100644
--- a/package.json
+++ b/package.json
@@ -14,7 +14,7 @@
     "native-or-bluebird": "1"
   },
   "devDependencies": {
-    "bluebird": "2",
+    "bluebird": "^3.1.1",
     "istanbul": "0",
     "mocha": "^2.3.3"
   },