diff --git a/package.json b/package.json
index ef3d624..d28ab24 100644
--- a/package.json
+++ b/package.json
@@ -27,7 +27,7 @@
     "gulp-inject": "^1.3.1",
     "gulp-util": "^3.0.5",
     "js-yaml": "^3.3.1",
-    "lodash.merge": "^3.3.1",
+    "lodash.merge": "^4.6.2",
     "mkdirp": "^0.5.1",
     "node-sass": "^3.3.2",
     "pattern-library": "^0.1.0",