diff --git a/package.json b/package.json
index 8d7a8696..a9f8c0fc 100644
--- a/package.json
+++ b/package.json
@@ -22,7 +22,7 @@
   "devDependencies": {
     "after": "0.8.2",
     "cookie-parser": "1.4.6",
-    "eslint": "3.19.0",
+    "eslint": "9.0.0",
     "eslint-plugin-markdown": "1.0.2",
     "express": "4.18.2",
     "mocha": "8.1.1",