diff --git a/package.json b/package.json
index f16a48f5..60fdedb2 100644
--- a/package.json
+++ b/package.json
@@ -4,10 +4,10 @@
   "description": "demo for angular app",
   "main": "index.js",
   "dependencies": {
-    "gulp": "^3.9.1"
+    "gulp": "^4.0.2"
   },
   "devDependencies": {
-    "gulp": "^3.9.1",
+    "gulp": "^4.0.2",
     "gulp-load-plugins": "^1.5.0",
     "gulp-clean": "^0.3.2",
     "gulp-concat": "^2.6.1",