diff --git a/package.json b/package.json
index f02e8fd..09b248f 100644
--- a/package.json
+++ b/package.json
@@ -17,7 +17,7 @@
     "@types/express": "4.0.35",
     "@types/mocha": "2.2.39",
     "@types/event-stream": "3.3.30",
-    "@types/gulp": "3.8.32",
+    "@types/gulp": "4.0.0",
     "@types/gulp-typescript": "0.0.32",
     "@types/node": "7.0.5",
     "@types/request": "0.0.40",