diff --git a/package.json b/package.json
index 1a33e485..c1afabda 100644
--- a/package.json
+++ b/package.json
@@ -16,16 +16,16 @@
   "devDependencies": {
     "@google/clasp": "2.3.2",
     "chai": "4.2.0",
-    "del": "1.2.1",
-    "eslint": "4.19.1",
+    "del": "6.0.0",
+    "eslint": "9.0.0",
     "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",
-    "gulp-eslint": "4.0.2",
+    "gulp-eslint": "6.0.0",
     "gulp-expose": "0.0.7",
     "gulp-rename": "2.0.0",
     "jsdoc": "3.6.4",