diff --git a/.babelrc.js b/.babelrc.js
deleted file mode 100644
index a376365..0000000
--- a/.babelrc.js
+++ /dev/null
@@ -1,13 +0,0 @@
-module.exports = {
-  presets: [
-    [
-      '@babel/preset-env',
-      {
-        targets: {
-          node: 'current',
-        },
-      },
-    ],
-  ],
-  plugins: ['@babel/plugin-proposal-object-rest-spread'],
-};
diff --git a/.eslintrc.js b/.eslintrc.js
deleted file mode 100644
index 3e6fcac..0000000
--- a/.eslintrc.js
+++ /dev/null
@@ -1,10 +0,0 @@
-module.exports = {
-  extends: ['gowento'],
-  rules: {
-    'lodash/prefer-lodash-typecheck': 'off',
-    'lodash/prefer-includes': 'off',
-    'lodash/prefer-constant': 'off',
-    'filenames/match-regex': 'off',
-    'filenames/match-exported': 'off',
-  },
-};
diff --git a/.travis.yml b/.travis.yml
deleted file mode 100644
index abd8010..0000000
--- a/.travis.yml
+++ /dev/null
@@ -1,7 +0,0 @@
-language: node_js
-node_js:
-  - v14
-  - v12
-  - v10
-after_script:
-  - 'npm run coveralls'
diff --git a/README.md b/README.md
index 1b5eeb7..783b969 100644
--- a/README.md
+++ b/README.md
@@ -1,7 +1,7 @@
 # api-query-params
 
 [![NPM version][npm-image]][npm-url]
-[![Build Status][travis-image]][travis-url]
+
 [![Coveralls Status][coveralls-image]][coveralls-url]
 [![Dependency Status][depstat-image]][depstat-url]
 [![Downloads][download-badge]][npm-url]
diff --git a/ava.config.js b/ava.config.js
index c879884..f63325a 100644
--- a/ava.config.js
+++ b/ava.config.js
@@ -1,4 +1,3 @@
 export default {
   verbose: true,
-  require: ['@babel/register'],
 };
diff --git a/eslint.config.js b/eslint.config.js
new file mode 100644
index 0000000..7c14899
--- /dev/null
+++ b/eslint.config.js
@@ -0,0 +1,17 @@
+import globals from "globals";
+import pluginJs from "@eslint/js";
+
+export default [
+  {
+    languageOptions: {
+      globals: {
+        ...globals.node,
+        ...globals.mocha,
+      },
+    },
+    rules: {
+      "no-unused-vars": ["error", { "varsIgnorePattern": "^_" }],
+    },
+  },
+  pluginJs.configs.recommended,
+];
\ No newline at end of file
diff --git a/package.json b/package.json
index 5d40645..9eecd27 100644
--- a/package.json
+++ b/package.json
@@ -1,23 +1,26 @@
 {
   "name": "api-query-params",
-  "version": "5.4.0",
+  "version": "6.0.0",
   "description": "Convert query parameters from API urls to MongoDB queries",
-  "main": "dist/cjs/index.js",
-  "types": "dist/cjs/types.d.ts",
+  "main": "src/index.js",
+  "types": "types.d.ts",
+  "type": "module",
   "files": [
-    "dist/"
+    "src/",
+    "types.d.ts"
   ],
   "scripts": {
-    "build": "babel ./src/index.js --out-file ./dist/cjs/index.js && shx cp ./types.d.ts ./dist/cjs/",
     "coverage": "nyc npm test && nyc report --reporter=html",
     "coveralls": "nyc npm test && nyc report --reporter=text-lcov | coveralls",
     "lint": "eslint ./src ./test",
     "postcoveralls": "rimraf ./coverage",
-    "prebuild": "npm run lint && rimraf ./dist && mkdirp ./dist/cjs",
-    "prepublish": "npm run build",
+    "prepublish": "yarn run test",
     "release": "np",
     "test": "ava"
   },
+  "engines": {
+    "node": ">=18"
+  },
   "repository": {
     "type": "git",
     "url": "git+https://github.com/loris/api-query-params.git"
@@ -35,20 +38,12 @@
   },
   "homepage": "https://github.com/loris/api-query-params#readme",
   "devDependencies": {
-    "@babel/cli": "7.16.0",
-    "@babel/core": "7.16.0",
-    "@babel/plugin-proposal-object-rest-spread": "7.16.0",
-    "@babel/preset-env": "7.16.4",
-    "@babel/register": "7.16.0",
-    "ava": "3.15.0",
-    "coveralls": "3.1.1",
-    "eslint": "7.9.0",
-    "eslint-config-gowento": "7.0.0",
-    "mkdirp": "1.0.4",
-    "np": "7.6.0",
-    "nyc": "15.1.0",
-    "prettier": "2.4.1",
-    "rimraf": "3.0.2",
-    "shx": "^0.3.3"
+    "ava": "^6.1.3",
+    "coveralls": "^3.1.1",
+    "eslint": "^9.4.0",
+    "np": "^10.0.5",
+    "nyc": "^17.0.0",
+    "prettier": "^3.3.2",
+    "rimraf": "^6.0.1"
   }
 }
diff --git a/src/index.js b/src/index.js
index 85351af..fd838fd 100644
--- a/src/index.js
+++ b/src/index.js
@@ -1,4 +1,4 @@
-import qs from 'querystring';
+
 
 const builtInCasters = {
   boolean: (val) => val === 'true',
@@ -119,7 +119,9 @@ const parseUnaries = (unaries, values = { plus: 1, minus: -1 }) => {
 const parseJSONString = (string) => {
   try {
     return JSON.parse(string);
-  } catch (err) {
+  } 
+  // eslint-disable-next-line no-unused-vars
+  catch (_err) {
     return false;
   }
 };
@@ -287,7 +289,25 @@ const operators = [
 
 const aqp = (query = '', options = {}) => {
   const result = {};
-  const params = typeof query === 'string' ? qs.parse(query) : query;
+  let params;
+
+  if (typeof query === 'string') {
+    params = {};
+    const urlSearchParams = new URLSearchParams(query);
+    for (const [key, value] of urlSearchParams.entries()) {
+      if (params[key]) {
+        if (Array.isArray(params[key])) {
+          params[key].push(value);
+        } else {
+          params[key] = [params[key], value];
+        }
+      } else {
+        params[key] = value;
+      }
+    }
+  } else {
+    params = query;
+  }
 
   options.blacklist = options.blacklist || [];
 
@@ -306,5 +326,4 @@ const aqp = (query = '', options = {}) => {
   return result;
 };
 
-module.exports = aqp;
-module.exports.default = aqp;
+export default aqp;
diff --git a/test/index.js b/test/index.js
index e6a5ad3..e3e31a7 100644
--- a/test/index.js
+++ b/test/index.js
@@ -1,12 +1,7 @@
 import test from 'ava';
-import aqp from '../src';
+import aqp from '../src/index.js';
 
-const requiredAqp = require('../src');
 
-test('module imported using require', (t) => {
-  const res = requiredAqp('key=value');
-  t.truthy(res);
-});
 
 test('filter: basic', (t) => {
   const res = aqp('key=value');