diff --git a/package.json b/package.json
index 6525064..353e714 100644
--- a/package.json
+++ b/package.json
@@ -40,7 +40,7 @@
     "camelcase": "^1.2.1",
     "escape-string-regexp": "^1.0.3",
     "lodash.assign": "^3.2.0",
-    "lodash.merge": "^3.3.2",
+    "lodash.merge": "^4.6.2",
     "mkdirp": "^0.5.1"
   }
 }