diff --git a/.circleci/config.yml b/.circleci/config.yml
index e259bee..debb0fa 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -6,7 +6,7 @@ version: 2.1
 parameters:
   node_version:
     type: string
-    default: '20.12.0'
+    default: '20.18.1'
 
 commands:
   install_deps:
diff --git a/.eslintignore b/.eslintignore
deleted file mode 100755
index 94e2829..0000000
--- a/.eslintignore
+++ /dev/null
@@ -1,4 +0,0 @@
-coverage/
-lib/
-renovate.json
-tsconfig.json
diff --git a/.eslintrc b/.eslintrc
deleted file mode 100644
index 472eed7..0000000
--- a/.eslintrc
+++ /dev/null
@@ -1,6 +0,0 @@
-{
-  "root": true,
-  "extends": [
-    "@shelf/eslint-config/typescript"
-  ]
-}
diff --git a/eslint.config.mjs b/eslint.config.mjs
new file mode 100644
index 0000000..069a711
--- /dev/null
+++ b/eslint.config.mjs
@@ -0,0 +1,9 @@
+import rules from '@shelf/eslint-config/typescript.js';
+
+export default [
+  ...rules,
+  {files: ['**/*.js', '**/*.jsx', '**/*.ts', '**/*.tsx', '**/*.json']},
+  {
+    ignores: ['**/node_modules/', '**/coverage/', '**/lib/', 'renovate.json', 'tsconfig.json'],
+  },
+];
diff --git a/package.json b/package.json
index 8b165bd..25e2c5a 100644
--- a/package.json
+++ b/package.json
@@ -26,7 +26,7 @@
     "build:types": "tsc --emitDeclarationOnly --declaration --isolatedModules false --declarationDir lib",
     "coverage": "yarn test --coverage",
     "lint": "yarn lint:ci --fix",
-    "lint:ci": "eslint . --ext .js,.ts,.json",
+    "lint:ci": "eslint . --quiet",
     "prepack": "yarn build",
     "test": "TZ=UTC jest src",
     "type-check": "tsc --noEmit",
@@ -52,12 +52,12 @@
     "@babel/cli": "7.26.4",
     "@babel/core": "7.26.0",
     "@shelf/babel-config": "3.0.0",
-    "@shelf/eslint-config": "3.15.1",
+    "@shelf/eslint-config": "4.2.1",
     "@shelf/prettier-config": "1.0.0",
     "@shelf/tsconfig": "0.1.0",
     "@types/jest": "29.5.14",
     "@types/node": "20",
-    "eslint": "8.57.1",
+    "eslint": "9.17.0",
     "husky": "9.1.7",
     "jest": "29.7.0",
     "lint-staged": "15.2.11",