diff --git a/package.json b/package.json
index 083276bc..4a278171 100644
--- a/package.json
+++ b/package.json
@@ -36,7 +36,7 @@
     "babel-preset-es2015": "^6.3.13",
     "babelify": "^7.2.0",
     "chai": "~3.4.1",
-    "es6-promise": "^1.0.0",
+    "es6-promise": "^3.1.2",
     "grunt": "~0.4.5",
     "grunt-browserify": "~4.0.1",
     "grunt-contrib-clean": "~0.7.0",