diff --git a/.eslintrc.js b/.eslintrc.js
deleted file mode 100644
index 331ea6c..0000000
--- a/.eslintrc.js
+++ /dev/null
@@ -1,28 +0,0 @@
-module.exports = {
-  ignorePatterns: ['**/*.d.ts', '**/*.test.ts', '**/*.js', 'sample/**/*.*'],
-  parser: '@typescript-eslint/parser',
-  extends: ['plugin:@typescript-eslint/recommended'],
-  plugins: ['header'],
-  parserOptions: {
-    ecmaVersion: 2018, // Allows for the parsing of modern ECMAScript features
-    sourceType: 'module', // Allows for the use of imports
-  },
-  rules: {
-    '@typescript-eslint/no-use-before-define': 'off',
-    '@typescript-eslint/explicit-function-return-type': 'off',
-		'@typescript-eslint/no-explicit-any': 'off',
-    '@typescript-eslint/no-non-null-assertion': 'off',
-    '@typescript-eslint/explicit-module-boundary-types': 'off',
-    '@typescript-eslint/no-unused-vars': 'off',
-    'header/header': [
-      'error',
-      'block',
-      `---------------------------------------------------------------------------------------------
- *  Copyright (c) Microsoft Corporation. All rights reserved.
- *  Licensed under the MIT License. See License.txt in the project root for license information.
- *--------------------------------------------------------------------------------------------`,
-    ],
-    // Place to specify ESLint rules. Can be used to overwrite rules specified from the extended configs
-    // e.g. "@typescript-eslint/explicit-function-return-type": "off",
-  },
-};
diff --git a/eslint.config.mjs b/eslint.config.mjs
new file mode 100644
index 0000000..b71549c
--- /dev/null
+++ b/eslint.config.mjs
@@ -0,0 +1,49 @@
+/*---------------------------------------------------------------------------------------------
+ *  Copyright (c) Microsoft Corporation. All rights reserved.
+ *  Licensed under the MIT License. See License.txt in the project root for license information.
+ *--------------------------------------------------------------------------------------------*/
+
+import header from "@tony.ganchev/eslint-plugin-header";
+import tsParser from "@typescript-eslint/parser";
+import path from "node:path";
+import { fileURLToPath } from "node:url";
+import js from "@eslint/js";
+import { FlatCompat } from "@eslint/eslintrc";
+
+const __filename = fileURLToPath(import.meta.url);
+const __dirname = path.dirname(__filename);
+const compat = new FlatCompat({
+    baseDirectory: __dirname,
+    recommendedConfig: js.configs.recommended,
+    allConfig: js.configs.all
+});
+
+export default [{
+    ignores: ["**/*.d.ts", "**/*.test.ts", "**/*.js", "sample/**/*.*"],
+}, ...compat.extends("plugin:@typescript-eslint/recommended"), {
+    plugins: {
+        header,
+    },
+
+    languageOptions: {
+        parser: tsParser,
+        ecmaVersion: 2018,
+        sourceType: "module",
+    },
+
+    rules: {
+        "@typescript-eslint/no-use-before-define": "off",
+        "@typescript-eslint/explicit-function-return-type": "off",
+        "@typescript-eslint/no-explicit-any": "off",
+        "@typescript-eslint/no-non-null-assertion": "off",
+        "@typescript-eslint/explicit-module-boundary-types": "off",
+        "@typescript-eslint/no-unused-vars": "off",
+        "@typescript-eslint/no-var-requires": "error",
+
+        "header/header": [
+            2,
+            "block",
+            ["---------------------------------------------------------------------------------------------\n *  Copyright (c) Microsoft Corporation. All rights reserved.\n *  Licensed under the MIT License. See License.txt in the project root for license information.\n *--------------------------------------------------------------------------------------------"],
+        ],
+    },
+}];
\ No newline at end of file
diff --git a/package-lock.json b/package-lock.json
index 1b3da44..e03fdbb 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "@vscode/test-web",
-  "version": "0.0.56",
+  "version": "0.0.57",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "@vscode/test-web",
-      "version": "0.0.56",
+      "version": "0.0.57",
       "license": "MIT",
       "dependencies": {
         "@koa/cors": "^5.0.0",
@@ -29,6 +29,9 @@
         "vscode-test-web": "out/index.js"
       },
       "devDependencies": {
+        "@eslint/eslintrc": "^3.1.0",
+        "@eslint/js": "^9.9.1",
+        "@tony.ganchev/eslint-plugin-header": "^3.1.2",
         "@types/gunzip-maybe": "^1.4.2",
         "@types/koa": "^2.15.0",
         "@types/koa__router": "^12.0.4",
@@ -41,7 +44,6 @@
         "@typescript-eslint/eslint-plugin": "^8.3.0",
         "@typescript-eslint/parser": "^8.3.0",
         "eslint": "^9.9.1",
-        "eslint-plugin-header": "^3.1.1",
         "typescript": "^5.5.4"
       },
       "engines": {
@@ -350,6 +352,15 @@
         "node": ">=18"
       }
     },
+    "node_modules/@tony.ganchev/eslint-plugin-header": {
+      "version": "3.1.2",
+      "resolved": "https://registry.npmjs.org/@tony.ganchev/eslint-plugin-header/-/eslint-plugin-header-3.1.2.tgz",
+      "integrity": "sha512-u9sJvwqAw26+2MlUfVMTbVAygcNpp+wQA3YbJ5qtkltEBzEJN8I+VKJxRKC2MSG/26uxHk9LA/rXz8iaYLmu5A==",
+      "dev": true,
+      "peerDependencies": {
+        "eslint": ">=7.7.0"
+      }
+    },
     "node_modules/@types/accepts": {
       "version": "1.3.5",
       "dev": true,
@@ -1179,14 +1190,6 @@
         }
       }
     },
-    "node_modules/eslint-plugin-header": {
-      "version": "3.1.1",
-      "dev": true,
-      "license": "MIT",
-      "peerDependencies": {
-        "eslint": ">=7.7.0"
-      }
-    },
     "node_modules/eslint-scope": {
       "version": "8.0.2",
       "resolved": "https://registry.npmjs.org/eslint-scope/-/eslint-scope-8.0.2.tgz",
diff --git a/package.json b/package.json
index 35191c2..f5b4635 100644
--- a/package.json
+++ b/package.json
@@ -6,7 +6,7 @@
     "compile": "tsc -p ./ && npm run compile-fs-provider",
     "watch": "tsc -w -p ./",
     "prepack": "npm run compile",
-    "test": "eslint src --ext ts && tsc --noEmit",
+    "test": "eslint src && tsc --noEmit",
     "preversion": "npm test",
     "postversion": "git push && git push --tags",
     "compile-fs-provider": "npm run --prefix=fs-provider compile-web",
@@ -40,6 +40,8 @@
     "vscode-uri": "^3.0.8"
   },
   "devDependencies": {
+    "@eslint/eslintrc": "^3.1.0",
+    "@eslint/js": "^9.9.1",
     "@types/gunzip-maybe": "^1.4.2",
     "@types/koa": "^2.15.0",
     "@types/koa__router": "^12.0.4",
@@ -52,7 +54,7 @@
     "@typescript-eslint/eslint-plugin": "^8.3.0",
     "@typescript-eslint/parser": "^8.3.0",
     "eslint": "^9.9.1",
-    "eslint-plugin-header": "^3.1.1",
+    "@tony.ganchev/eslint-plugin-header": "^3.1.2",
     "typescript": "^5.5.4"
   },
   "license": "MIT",
diff --git a/src/index.ts b/src/index.ts
index c7deb96..17e9fbb 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -582,7 +582,8 @@ async function cliMain(): Promise<void> {
 		console.error('uncaughtException', e);
 	});
 
-	// eslint-disable-next-line @typescript-eslint/no-var-requires
+	/* eslint-disable @typescript-eslint/no-var-requires */
+	/* eslint-disable @typescript-eslint/no-require-imports */
 	const manifest = require('../package.json');
 	console.log(`${manifest.name}: ${manifest.version}`);