diff --git a/package.json b/package.json
old mode 100755
new mode 100644
index bd61193..24899c2
--- a/package.json
+++ b/package.json
@@ -5,11 +5,11 @@
     "dev": "gulp watch"
   },
   "devDependencies": {
-    "gulp": "^3.9.1",
+    "gulp": "^4.0.2",
     "laravel-elixir": "^5.0.0",
     "bootstrap-sass": "^3.0.0"
   },
   "dependencies": {
-    "gulp": "^3.9.1"
+    "gulp": "^4.0.2"
   }
 }