diff --git a/.eslintrc.json b/.eslintrc.json
deleted file mode 100644
index 592e8e8..0000000
--- a/.eslintrc.json
+++ /dev/null
@@ -1,11 +0,0 @@
-{
-  "env": {
-    "es6": true,
-    "node": true
-  },
-  "extends": "eslint:recommended",
-  "parserOptions": {
-    "ecmaVersion": 2022
-  },
-  "rules": {}
-}
diff --git a/eslint.config.js b/eslint.config.js
new file mode 100644
index 0000000..bf820c8
--- /dev/null
+++ b/eslint.config.js
@@ -0,0 +1,23 @@
+const js = require("@eslint/js");
+const globals = require("globals");
+
+module.exports = [
+  js.configs.recommended,
+  {
+    languageOptions: {
+      ecmaVersion: 2022,
+      globals: {
+        ...globals.node,
+        ...globals.es6,
+      },
+    },
+  },
+  {
+    files: ["tests/**"],
+    languageOptions: {
+      globals: {
+        ...globals.mocha,
+      },
+    },
+  },
+];
diff --git a/package-lock.json b/package-lock.json
index 51176c4..ff2c7e5 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -14,6 +14,7 @@
       },
       "devDependencies": {
         "eslint": "^9.1.1",
+        "globals": "^15.1.0",
         "is-pdf": "^1.0.0",
         "metalsmith": "^2.4.0",
         "mocha": "^10.0.0",
@@ -379,6 +380,18 @@
       "integrity": "sha512-8+9WqebbFzpX9OR+Wa6O29asIogeRMzcGtAINdpMHHyAg10f05aSFVBbcEqGf/PXw1EjAZ+q2/bEBg3DvurK3Q==",
       "dev": true
     },
+    "node_modules/@eslint/eslintrc/node_modules/globals": {
+      "version": "14.0.0",
+      "resolved": "https://registry.npmjs.org/globals/-/globals-14.0.0.tgz",
+      "integrity": "sha512-oahGvuMGQlPw/ivIYBjVSrWAfWLBeku5tpPE2fOPLi+WHffIWbuh2tCjhyQhTBPMf5E9jDEH4FOmTYgYwbKwtQ==",
+      "dev": true,
+      "engines": {
+        "node": ">=18"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/sindresorhus"
+      }
+    },
     "node_modules/@eslint/eslintrc/node_modules/js-yaml": {
       "version": "4.1.0",
       "resolved": "https://registry.npmjs.org/js-yaml/-/js-yaml-4.1.0.tgz",
@@ -2287,9 +2300,9 @@
       }
     },
     "node_modules/globals": {
-      "version": "14.0.0",
-      "resolved": "https://registry.npmjs.org/globals/-/globals-14.0.0.tgz",
-      "integrity": "sha512-oahGvuMGQlPw/ivIYBjVSrWAfWLBeku5tpPE2fOPLi+WHffIWbuh2tCjhyQhTBPMf5E9jDEH4FOmTYgYwbKwtQ==",
+      "version": "15.1.0",
+      "resolved": "https://registry.npmjs.org/globals/-/globals-15.1.0.tgz",
+      "integrity": "sha512-926gJqg+4mkxwYKiFvoomM4J0kWESfk3qfTvRL2/oc/tK/eTDBbrfcKnSa2KtfdxB5onoL7D3A3qIHQFpd4+UA==",
       "dev": true,
       "engines": {
         "node": ">=18"
diff --git a/package.json b/package.json
index df3cd94..9b7abda 100644
--- a/package.json
+++ b/package.json
@@ -6,7 +6,7 @@
   "scripts": {
     "test": "npm run lint && mocha --timeout 8000 tests",
     "coverage": "nyc -x tests mocha --timeout 8000 tests",
-    "lint": "prettier -c . && ESLINT_USE_FLAT_CONFIG=false eslint ."
+    "lint": "prettier -c . && eslint ."
   },
   "repository": {
     "type": "git",
@@ -33,6 +33,7 @@
   },
   "devDependencies": {
     "eslint": "^9.1.1",
+    "globals": "^15.1.0",
     "is-pdf": "^1.0.0",
     "metalsmith": "^2.4.0",
     "mocha": "^10.0.0",
diff --git a/tests/.eslintrc.json b/tests/.eslintrc.json
deleted file mode 100644
index 7eeefc3..0000000
--- a/tests/.eslintrc.json
+++ /dev/null
@@ -1,5 +0,0 @@
-{
-  "env": {
-    "mocha": true
-  }
-}