diff --git a/package.json b/package.json
index 1a33e485..021a46d0 100644
--- a/package.json
+++ b/package.json
@@ -21,7 +21,7 @@
     "eslint-config-google": "0.14.0",
     "fibers": "5.0.0",
     "gas-local": "1.3.1",
-    "gulp": "4.0.2",
+    "gulp": "5.0.0",
     "gulp-clean": "0.4.0",
     "gulp-concat": "2.6.1",
     "gulp-contains": "1.2.0",