diff --git a/package.json b/package.json
index 4565636..7a48a41 100644
--- a/package.json
+++ b/package.json
@@ -18,7 +18,7 @@
     "babel-register": "^6.18.0",
     "chai": "^3.5.0",
     "codecov": "^2.1.0",
-    "cross-env": "^4.0.0",
+    "cross-env": "^5.0.0",
     "css-loader": "^0.28.0",
     "doctoc": "^1.2.0",
     "es6-promise": "^4.0.5",