diff --git a/package.json b/package.json
index 8d68f89..e48664d 100644
--- a/package.json
+++ b/package.json
@@ -28,7 +28,7 @@
     "express": "^4.15.2",
     "fresh": "^0.5.0",
     "mime-types": "~2.1.13",
-    "mkdirp": "^0.5.1",
+    "mkdirp": "^1.0.4",
     "murmurhash3": "^0.4.0",
     "tmp": "0.0.31"
   }