diff --git a/package.json b/package.json
index e08bb2156a..4e50689cc7 100644
--- a/package.json
+++ b/package.json
@@ -53,7 +53,7 @@
     "nexpect": "^0.5.0",
     "pre-commit": "^1.1.2",
     "rimraf": "^2.5.2",
-    "stream-to-promise": "^1.1.0",
+    "stream-to-promise": "^2.1.1",
     "transform-loader": "^0.2.3"
   },
   "dependencies": {