diff --git a/package.json b/package.json
index 5cff4ed..9bd3924 100644
--- a/package.json
+++ b/package.json
@@ -27,6 +27,6 @@
     "map-stream": "^0.0.7"
   },
   "devDependencies": {
-    "gulp": "^3.9.1"
+    "gulp": "^4.0.2"
   }
 }