diff --git a/package.json b/package.json
index fb5c6cb..9d6e762 100644
--- a/package.json
+++ b/package.json
@@ -33,7 +33,7 @@
   },
   "devDependencies": {
     "coffee-script": "~1.7.1",
-    "gulp": "~3.5.5",
+    "gulp": "~4.0.2",
     "gulp-coffee": "~1.4.1",
     "gulp-clean": "~0.2.4",
     "gulp-mocha": "~0.4.1",