diff --git a/package-lock.json b/package-lock.json
index 4272e786..801a24f7 100644
--- a/package-lock.json
+++ b/package-lock.json
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diff --git a/package.json b/package.json
old mode 100755
new mode 100644
index 3172f596..1926358a
--- a/package.json
+++ b/package.json
@@ -11,7 +11,7 @@
     "browser-sync": "^2.26.7",
     "connect-history-api-fallback": "^1.5.0",
     "del": "*",
-    "gulp": "^3.9.1",
+    "gulp": "^4.0.2",
     "gulp-browserify": "^0.5.1",
     "gulp-clean": "^0.3.2",
     "gulp-concat": "^2.6.0",