diff --git a/package.json b/package.json
index 1a33e485..b549d8dc 100644
--- a/package.json
+++ b/package.json
@@ -14,10 +14,10 @@
   },
   "homepage": "https://github.com/googlesamples/apps-script-oauth2",
   "devDependencies": {
-    "@google/clasp": "2.3.2",
+    "@google/clasp": "2.4.0",
     "chai": "4.2.0",
     "del": "1.2.1",
-    "eslint": "4.19.1",
+    "eslint": "5.5.0",
     "eslint-config-google": "0.14.0",
     "fibers": "5.0.0",
     "gas-local": "1.3.1",
@@ -25,10 +25,10 @@
     "gulp-clean": "0.4.0",
     "gulp-concat": "2.6.1",
     "gulp-contains": "1.2.0",
-    "gulp-eslint": "4.0.2",
+    "gulp-eslint": "5.0.0",
     "gulp-expose": "0.0.7",
     "gulp-rename": "2.0.0",
-    "jsdoc": "3.6.4",
+    "jsdoc": "4.0.0",
     "mocha": "9.0.0",
     "urlsafe-base64": "1.0.0"
   },