diff --git a/package.json b/package.json
index 172e4e6..beaea6b 100644
--- a/package.json
+++ b/package.json
@@ -13,7 +13,7 @@
   , "license": "Apache-2.0"
   , "dependencies" : {
       "nopt" : "1.0.10"
-    , "mkdirp": "0.3.0"
+    , "mkdirp": "^0.3.0"
     }
   , "devDependencies": {
       "uglify-js": "2.x"