diff --git a/package.json b/package.json
index 289deecf9..cdaa5901b 100644
--- a/package.json
+++ b/package.json
@@ -135,11 +135,11 @@
     "gulp-flatten": "^0.4.0",
     "gulp-rename": "^1.3.0",
     "gulp-slash": "^1.1.3",
-    "gulp-util": "^3.0.8",
     "lodash.template": "^4.5.0",
     "node-loader": "^0.6.0",
     "through": "^2.3.8",
     "typescript": "^2.6.2",
+    "vinyl": "^2.2.0",
     "webpack-merge": "^4.1.2"
   },
   "browser": {