diff --git a/package.json b/package.json
index 7ac64270..a28f0e51 100644
--- a/package.json
+++ b/package.json
@@ -27,7 +27,7 @@
         "express": "4.15.4",
         "gulp-babel": "6.1.1",
         "gulp-rimraf": "0.2.0",
-        "gulp": "3.9.0",
+        "gulp": "4.0.0",
         "hostenv": "1.0.1",
         "opentype.js": "0.4.4",
         "socket.io": "2.0.3",