diff --git a/package.json b/package.json
index ff844fb..2c6f9e1 100644
--- a/package.json
+++ b/package.json
@@ -49,7 +49,7 @@
     "jsdom": "^9.8.3",
     "jsx-chai": "^4.0.0",
     "mime": "^1.3.4",
-    "mkdirp": "^0.5.1",
+    "mkdirp": "^1.0.0",
     "mocha": "^3.2.0",
     "mocha-clean": "^1.0.0",
     "react-addons-test-utils": "^15.4.1",