diff --git a/package.json b/package.json
index bcc7732..520f678 100644
--- a/package.json
+++ b/package.json
@@ -35,7 +35,7 @@
 	"devDependencies": {
 		"babel-preset-env": "1.7.0",
 		"babel-register": "6.26.0",
-		"directory-tree": "2.2.3",
+		"directory-tree": "3.5.1",
 		"document-ready": "2.0.2",
 		"fs-extra": "8.1.0",
 		"node-sass": "4.12.0",