diff --git a/.svglintrc.js b/.svglintrc.mjs
similarity index 97%
rename from .svglintrc.js
rename to .svglintrc.mjs
index 16c98506..28dc543a 100644
--- a/.svglintrc.js
+++ b/.svglintrc.mjs
@@ -1,11 +1,28 @@
-const fs = require('fs');
+import fs from 'node:fs';
+import path from 'node:path';
+import {
+  getDirnameFromImportMeta,
+  htmlFriendlyToTitle,
+} from './scripts/utils.js';
+import svgpath from 'svgpath';
+import svgPathBbox from 'svg-path-bbox';
+import parsePath from 'svg-path-segments';
 
-const data = require('./_data/simple-icons.json');
-const { htmlFriendlyToTitle } = require('./scripts/utils.js');
-const htmlNamedEntities = require('named-html-entities-json');
-const svgpath = require('svgpath');
-const svgPathBbox = require('svg-path-bbox');
-const parsePath = require('svg-path-segments');
+const __dirname = getDirnameFromImportMeta(import.meta.url);
+const dataFile = path.join(__dirname, '_data', 'simple-icons.json');
+const htmlNamedEntitiesFile = path.join(
+  __dirname,
+  'node_modules',
+  'named-html-entities-json',
+  'index.json',
+);
+const svglintIgnoredFile = path.join(__dirname, '.svglint-ignored.json');
+
+const data = JSON.parse(fs.readFileSync(dataFile, 'utf8'));
+const htmlNamedEntities = JSON.parse(
+  fs.readFileSync(htmlNamedEntitiesFile, 'utf8'),
+);
+const svglintIgnores = JSON.parse(fs.readFileSync(svglintIgnoredFile, 'utf8'));
 
 const svgRegexp =
   /^<svg( [^\s]*=".*"){3}><title>.*<\/title><path d=".*"\/><\/svg>\n?$/;
@@ -19,7 +36,7 @@ const iconTolerance = 0.001;
 // set env SI_UPDATE_IGNORE to recreate the ignore file
 const updateIgnoreFile = process.env.SI_UPDATE_IGNORE === 'true';
 const ignoreFile = './.svglint-ignored.json';
-const iconIgnored = !updateIgnoreFile ? require(ignoreFile) : {};
+const iconIgnored = !updateIgnoreFile ? svglintIgnores : {};
 
 const sortObjectByKey = (obj) => {
   return Object.keys(obj)
@@ -126,7 +143,7 @@ const ignoreIcon = (linterName, path, $) => {
   iconIgnored[linterName][path] = iconName;
 };
 
-module.exports = {
+export default {
   rules: {
     elm: {
       svg: 1,
diff --git a/package.json b/package.json
index 037582c7..35d952ee 100644
--- a/package.json
+++ b/package.json
@@ -56,12 +56,12 @@
     "our-lint": "node scripts/lint/ourlint.js",
     "jslint": "prettier --check .",
     "jsonlint": "node scripts/lint/jsonlint.js",
-    "svglint": "svglint icons/*.svg --ci",
+    "svglint": "svglint icons/*.svg --ci --config .svglintrc.mjs",
     "wslint": "editorconfig-checker",
     "prepare": "is-ci || husky install",
     "prepublishOnly": "npm run build",
     "postpublish": "npm run clean",
-    "test": "node --experimental-specifier-resolution=node node_modules/uvu/bin.js",
+    "test": "uvu",
     "pretest": "npm run prepublishOnly",
     "posttest": "npm run postpublish",
     "svgo": "svgo --config svgo.config.js",
diff --git a/scripts/build/package.js b/scripts/build/package.js
index a70fd698..d53b4e27 100644
--- a/scripts/build/package.js
+++ b/scripts/build/package.js
@@ -7,15 +7,24 @@
  * tree-shakeable
  */
 
-const fs = require('fs').promises;
-const path = require('path');
-const util = require('util');
-const { transform: esbuildTransform } = require('esbuild');
+import { promises as fs } from 'node:fs';
+import path from 'node:path';
+import util from 'node:util';
+import { transform as esbuildTransform } from 'esbuild';
+import {
+  getIconSlug,
+  svgToPath,
+  titleToHtmlFriendly,
+  slugToVariableName,
+  getIconsData,
+  getDirnameFromImportMeta,
+} from '../utils.js';
+
+const __dirname = getDirnameFromImportMeta(import.meta.url);
 
 const UTF8 = 'utf8';
 
 const rootDir = path.resolve(__dirname, '..', '..');
-const dataFile = path.resolve(rootDir, '_data', 'simple-icons.json');
 const indexFile = path.resolve(rootDir, 'index.js');
 const iconsDir = path.resolve(rootDir, 'icons');
 const iconsJsFile = path.resolve(rootDir, 'icons.js');
@@ -26,15 +35,8 @@ const templatesDir = path.resolve(__dirname, 'templates');
 const indexTemplateFile = path.resolve(templatesDir, 'index.js');
 const iconObjectTemplateFile = path.resolve(templatesDir, 'icon-object.js');
 
-const data = require(dataFile);
-const {
-  getIconSlug,
-  svgToPath,
-  titleToHtmlFriendly,
-  slugToVariableName,
-} = require('../utils.js');
-
 const build = async () => {
+  const icons = await getIconsData();
   const indexTemplate = await fs.readFile(indexTemplateFile, UTF8);
   const iconObjectTemplate = await fs.readFile(iconObjectTemplateFile, UTF8);
 
@@ -82,16 +84,16 @@ const build = async () => {
   const iconsBarrelMjs = [];
   const iconsBarrelJs = [];
   const iconsBarrelDts = [];
-  const icons = [];
+  const buildIcons = [];
 
   await Promise.all(
-    data.icons.map(async (icon) => {
+    icons.map(async (icon) => {
       const filename = getIconSlug(icon);
       const svgFilepath = path.resolve(iconsDir, `${filename}.svg`);
       icon.svg = (await fs.readFile(svgFilepath, UTF8)).replace(/\r?\n/, '');
       icon.path = svgToPath(icon.svg);
       icon.slug = filename;
-      icons.push(icon);
+      buildIcons.push(icon);
 
       const iconObject = iconToObject(icon);
 
@@ -126,7 +128,7 @@ const build = async () => {
   // write our generic index.js
   const rawIndexJs = util.format(
     indexTemplate,
-    icons.map(iconToKeyValue).join(','),
+    buildIcons.map(iconToKeyValue).join(','),
   );
   await writeJs(indexFile, rawIndexJs);
 
diff --git a/scripts/get-filename.js b/scripts/get-filename.js
index 088a1489..6649c8a2 100644
--- a/scripts/get-filename.js
+++ b/scripts/get-filename.js
@@ -5,7 +5,7 @@
  * icon SVG filename to standard output.
  */
 
-const { titleToSlug } = require('./utils.js');
+import { titleToSlug } from './utils.js';
 
 if (process.argv.length < 3) {
   console.error('Provide a brand name as argument');
diff --git a/scripts/lint/jsonlint.js b/scripts/lint/jsonlint.js
index 059a2831..7e615157 100644
--- a/scripts/lint/jsonlint.js
+++ b/scripts/lint/jsonlint.js
@@ -4,23 +4,30 @@
  * CLI tool to run jsonschema on the simple-icons.json data file.
  */
 
-const path = require('path');
-const { Validator } = require('jsonschema');
+import { promises as fs } from 'node:fs';
+import path from 'node:path';
+import { Validator } from 'jsonschema';
+import { getDirnameFromImportMeta, getIconsData } from '../utils.js';
+
+const __dirname = getDirnameFromImportMeta(import.meta.url);
 
 const rootDir = path.resolve(__dirname, '..', '..');
 const schemaFile = path.resolve(rootDir, '.jsonschema.json');
-const dataFile = path.resolve(rootDir, '_data', 'simple-icons.json');
 
-const schema = require(schemaFile);
-const data = require(dataFile);
+(async () => {
+  const icons = await getIconsData();
+  const schema = JSON.parse(await fs.readFile(schemaFile, 'utf8'));
 
-const validator = new Validator();
-const result = validator.validate(data, schema);
-if (result.errors.length > 0) {
-  result.errors.forEach((error) => {
-    console.error(error);
-  });
+  const validator = new Validator();
+  const result = validator.validate({ icons }, schema);
+  if (result.errors.length > 0) {
+    result.errors.forEach((error) => {
+      console.error(error);
+    });
 
-  console.error(`Found ${result.errors.length} error(s) in simple-icons.json`);
-  process.exit(1);
-}
+    console.error(
+      `Found ${result.errors.length} error(s) in simple-icons.json`,
+    );
+    process.exit(1);
+  }
+})();
diff --git a/scripts/lint/ourlint.js b/scripts/lint/ourlint.js
index 77925b8d..293bc0e9 100644
--- a/scripts/lint/ourlint.js
+++ b/scripts/lint/ourlint.js
@@ -5,16 +5,8 @@
  * linters (e.g. jsonlint/svglint).
  */
 
-const fs = require('fs');
-const path = require('path');
-
-const fakeDiff = require('fake-diff');
-
-const UTF8 = 'utf8';
-
-const rootDir = path.resolve(__dirname, '..', '..');
-const dataFile = path.resolve(rootDir, '_data', 'simple-icons.json');
-const data = require(dataFile);
+import fakeDiff from 'fake-diff';
+import { getIconsDataString } from '../utils.js';
 
 /**
  * Contains our tests so they can be isolated from each other.
@@ -22,7 +14,7 @@ const data = require(dataFile);
  */
 const TESTS = {
   /* Tests whether our icons are in alphabetical order */
-  alphabetical: () => {
+  alphabetical: (data) => {
     const collector = (invalidEntries, icon, index, array) => {
       if (index > 0) {
         const prev = array[index - 1];
@@ -54,22 +46,30 @@ const TESTS = {
   },
 
   /* Check the formatting of the data file */
-  prettified: () => {
-    const dataString = fs.readFileSync(dataFile, UTF8).replace(/\r\n/g, '\n');
+  prettified: async (data, dataString) => {
+    const normalizedDataString = dataString.replace(/\r\n/g, '\n');
     const dataPretty = `${JSON.stringify(data, null, '    ')}\n`;
-    if (dataString !== dataPretty) {
-      const dataDiff = fakeDiff(dataString, dataPretty);
+
+    if (normalizedDataString !== dataPretty) {
+      const dataDiff = fakeDiff(normalizedDataString, dataPretty);
       return `Data file is formatted incorrectly:\n\n${dataDiff}`;
     }
   },
 };
 
 // execute all tests and log all errors
-const errors = Object.keys(TESTS)
-  .map((k) => TESTS[k]())
-  .filter(Boolean);
+(async () => {
+  const dataString = await getIconsDataString();
+  const data = JSON.parse(dataString);
 
-if (errors.length > 0) {
-  errors.forEach((error) => console.error(`\u001b[31m${error}\u001b[0m`));
-  process.exit(1);
-}
+  const errors = (
+    await Promise.all(
+      Object.keys(TESTS).map((test) => TESTS[test](data, dataString)),
+    )
+  ).filter(Boolean);
+
+  if (errors.length > 0) {
+    errors.forEach((error) => console.error(`\u001b[31m${error}\u001b[0m`));
+    process.exit(1);
+  }
+})();
diff --git a/scripts/package.json b/scripts/package.json
new file mode 100644
index 00000000..3dbc1ca5
--- /dev/null
+++ b/scripts/package.json
@@ -0,0 +1,3 @@
+{
+  "type": "module"
+}
diff --git a/scripts/release/bump-version.js b/scripts/release/bump-version.js
index 4072f31d..d19b7bb0 100644
--- a/scripts/release/bump-version.js
+++ b/scripts/release/bump-version.js
@@ -4,8 +4,11 @@
  * Updates the version of this package to the CLI specified version.
  */
 
-const fs = require('fs');
-const path = require('path');
+import fs from 'node:fs';
+import path from 'node:path';
+import { getDirnameFromImportMeta } from '../utils.js';
+
+const __dirname = getDirnameFromImportMeta(import.meta.url);
 
 const rootDir = path.resolve(__dirname, '..', '..');
 const packageJsonFile = path.resolve(rootDir, 'package.json');
diff --git a/scripts/release/update-cdn-urls.js b/scripts/release/update-cdn-urls.js
index be06aa7e..ed311a18 100644
--- a/scripts/release/update-cdn-urls.js
+++ b/scripts/release/update-cdn-urls.js
@@ -5,8 +5,11 @@
  * NPM package manifest. Does nothing if the README.md is already up-to-date.
  */
 
-const fs = require('fs');
-const path = require('path');
+import fs from 'node:fs';
+import path from 'node:path';
+import { getDirnameFromImportMeta } from '../utils.js';
+
+const __dirname = getDirnameFromImportMeta(import.meta.url);
 
 const rootDir = path.resolve(__dirname, '..', '..');
 const packageJsonFile = path.resolve(rootDir, 'package.json');
diff --git a/scripts/release/update-slugs-table.js b/scripts/release/update-slugs-table.js
index 84bb9132..250c96d6 100644
--- a/scripts/release/update-slugs-table.js
+++ b/scripts/release/update-slugs-table.js
@@ -4,16 +4,17 @@
  * Generates a MarkDown file that lists every brand name and their slug.
  */
 
-const fs = require('fs');
-const path = require('path');
+import { promises as fs } from 'node:fs';
+import path from 'node:path';
+import { fileURLToPath } from 'node:url';
+import { getIconsData, getIconSlug } from '../utils.js';
+
+const __filename = fileURLToPath(import.meta.url);
+const __dirname = path.dirname(__filename);
 
 const rootDir = path.resolve(__dirname, '..', '..');
-const dataFile = path.resolve(rootDir, '_data', 'simple-icons.json');
 const slugsFile = path.resolve(rootDir, 'slugs.md');
 
-const data = require(dataFile);
-const { getIconSlug } = require('../utils.js');
-
 let content = `<!--
 This file is automatically generated. If you want to change something, please
 update the script at '${path.relative(rootDir, __filename)}'.
@@ -25,10 +26,14 @@ update the script at '${path.relative(rootDir, __filename)}'.
 | :--- | :--- |
 `;
 
-data.icons.forEach((icon) => {
-  const brandName = icon.title;
-  const brandSlug = getIconSlug(icon);
-  content += `| \`${brandName}\` | \`${brandSlug}\` |\n`;
-});
+(async () => {
+  const icons = await getIconsData();
 
-fs.writeFileSync(slugsFile, content);
+  icons.forEach((icon) => {
+    const brandName = icon.title;
+    const brandSlug = getIconSlug(icon);
+    content += `| \`${brandName}\` | \`${brandSlug}\` |\n`;
+  });
+
+  await fs.writeFile(slugsFile, content);
+})();
diff --git a/scripts/release/update-svgs-count.js b/scripts/release/update-svgs-count.js
index a8c48d82..4c426254 100644
--- a/scripts/release/update-svgs-count.js
+++ b/scripts/release/update-svgs-count.js
@@ -5,34 +5,39 @@
  * at README every time the number of current icons is more than `updateRange`
  * more than the previous milestone.
  */
-
-const fs = require('fs');
-const path = require('path');
+import { promises as fs } from 'node:fs';
+import path from 'node:path';
+import { getDirnameFromImportMeta, getIconsData } from '../utils.js';
 
 const regexMatcher = /Over\s(\d+)\s/;
 const updateRange = 100;
 
+const __dirname = getDirnameFromImportMeta(import.meta.url);
+
 const rootDir = path.resolve(__dirname, '..', '..');
-const dataFile = path.resolve(rootDir, '_data', 'simple-icons.json');
 const readmeFile = path.resolve(rootDir, 'README.md');
-const readmeContent = fs.readFileSync(readmeFile, 'utf-8');
 
-let overNIconsInReadme;
-try {
-  overNIconsInReadme = parseInt(regexMatcher.exec(readmeContent)[1]);
-} catch (err) {
-  console.error(
-    'Failed to obtain number of SVG icons of current milestone in README:',
-    err,
-  );
-  process.exit(1);
-}
+(async () => {
+  const readmeContent = await fs.readFile(readmeFile, 'utf-8');
 
-const nIcons = require(dataFile).icons.length,
-  newNIcons = overNIconsInReadme + updateRange;
-if (nIcons <= newNIcons) {
-  process.exit(0);
-}
+  let overNIconsInReadme;
+  try {
+    overNIconsInReadme = parseInt(regexMatcher.exec(readmeContent)[1]);
+  } catch (err) {
+    console.error(
+      'Failed to obtain number of SVG icons of current milestone in README:',
+      err,
+    );
+    process.exit(1);
+  }
 
-const newContent = readmeContent.replace(regexMatcher, `Over ${newNIcons} `);
-fs.writeFileSync(readmeFile, newContent);
+  const nIcons = (await getIconsData()).length;
+  const newNIcons = overNIconsInReadme + updateRange;
+
+  if (nIcons <= newNIcons) {
+    process.exit(0);
+  }
+
+  const newContent = readmeContent.replace(regexMatcher, `Over ${newNIcons} `);
+  await fs.writeFile(readmeFile, newContent);
+})();
diff --git a/scripts/utils.js b/scripts/utils.js
index 86dc948c..4dfe284e 100644
--- a/scripts/utils.js
+++ b/scripts/utils.js
@@ -3,76 +3,103 @@
  * Some common utilities for scripts.
  */
 
-module.exports = {
-  /**
-   * Get the slug/filename for an icon.
-   * @param {Object} icon The icon data as it appears in _data/simple-icons.json
-   */
-  getIconSlug: (icon) => icon.slug || module.exports.titleToSlug(icon.title),
+import path from 'node:path';
+import { promises as fs } from 'node:fs';
+import { fileURLToPath } from 'node:url';
 
-  /**
-   * Extract the path from an icon SVG content.
-   * @param {Object} svg The icon SVG content
-   **/
-  svgToPath: (svg) => svg.match(/<path\s+d="([^"]*)/)[1],
+/**
+ * Get the slug/filename for an icon.
+ * @param {Object} icon The icon data as it appears in _data/simple-icons.json
+ */
+export const getIconSlug = (icon) => icon.slug || titleToSlug(icon.title);
 
-  /**
-   * Converts a brand title into a slug/filename.
-   * @param {String} title The title to convert
-   */
-  titleToSlug: (title) =>
-    title
-      .toLowerCase()
-      .replace(/\+/g, 'plus')
-      .replace(/\./g, 'dot')
-      .replace(/&/g, 'and')
-      .replace(/đ/g, 'd')
-      .replace(/ħ/g, 'h')
-      .replace(/ı/g, 'i')
-      .replace(/ĸ/g, 'k')
-      .replace(/ŀ/g, 'l')
-      .replace(/ł/g, 'l')
-      .replace(/ß/g, 'ss')
-      .replace(/ŧ/g, 't')
-      .normalize('NFD')
-      .replace(/[^a-z0-9]/g, ''),
+/**
+ * Extract the path from an icon SVG content.
+ * @param {Object} svg The icon SVG content
+ **/
+export const svgToPath = (svg) => svg.match(/<path\s+d="([^"]*)/)[1];
 
-  /**
-   * Converts a brand title in HTML/SVG friendly format into a brand title (as
-   * it is seen in simple-icons.json)
-   * @param {String} htmlFriendlyTitle The title to convert
-   */
-  htmlFriendlyToTitle: (htmlFriendlyTitle) =>
-    htmlFriendlyTitle
-      .replace(/&#([0-9]+);/g, (_, num) => String.fromCharCode(parseInt(num)))
-      .replace(
-        /&(quot|amp|lt|gt);/g,
-        (_, ref) => ({ quot: '"', amp: '&', lt: '<', gt: '>' }[ref]),
-      ),
+/**
+ * Converts a brand title into a slug/filename.
+ * @param {String} title The title to convert
+ */
+export const titleToSlug = (title) =>
+  title
+    .toLowerCase()
+    .replace(/\+/g, 'plus')
+    .replace(/\./g, 'dot')
+    .replace(/&/g, 'and')
+    .replace(/đ/g, 'd')
+    .replace(/ħ/g, 'h')
+    .replace(/ı/g, 'i')
+    .replace(/ĸ/g, 'k')
+    .replace(/ŀ/g, 'l')
+    .replace(/ł/g, 'l')
+    .replace(/ß/g, 'ss')
+    .replace(/ŧ/g, 't')
+    .normalize('NFD')
+    .replace(/[^a-z0-9]/g, '');
 
-  /**
-   * Converts a slug into a variable name that can be exported.
-   * @param {String} slug The slug to convert
-   */
-  slugToVariableName: (slug) => {
-    const slugFirstLetter = slug[0].toUpperCase();
-    const slugRest = slug.slice(1);
-    return `si${slugFirstLetter}${slugRest}`;
-  },
-
-  /**
-   * Converts a brand title (as it is seen in simple-icons.json) into a brand
-   * title in HTML/SVG friendly format.
-   * @param {String} brandTitle The title to convert
-   */
-  titleToHtmlFriendly: (brandTitle) =>
-    brandTitle
-      .replace(/&/g, '&amp;')
-      .replace(/"/g, '&quot;')
-      .replace(/</g, '&lt;')
-      .replace(/>/g, '&gt;')
-      .replace(/./g, (char) => {
-        const charCode = char.charCodeAt(0);
-        return charCode > 127 ? `&#${charCode};` : char;
-      }),
+/**
+ * Converts a slug into a variable name that can be exported.
+ * @param {String} slug The slug to convert
+ */
+export const slugToVariableName = (slug) => {
+  const slugFirstLetter = slug[0].toUpperCase();
+  const slugRest = slug.slice(1);
+  return `si${slugFirstLetter}${slugRest}`;
 };
+
+/**
+ * Converts a brand title (as it is seen in simple-icons.json) into a brand
+ * title in HTML/SVG friendly format.
+ * @param {String} brandTitle The title to convert
+ */
+export const titleToHtmlFriendly = (brandTitle) =>
+  brandTitle
+    .replace(/&/g, '&amp;')
+    .replace(/"/g, '&quot;')
+    .replace(/</g, '&lt;')
+    .replace(/>/g, '&gt;')
+    .replace(/./g, (char) => {
+      const charCode = char.charCodeAt(0);
+      return charCode > 127 ? `&#${charCode};` : char;
+    });
+
+/**
+ * Converts a brand title in HTML/SVG friendly format into a brand title (as
+ * it is seen in simple-icons.json)
+ * @param {String} htmlFriendlyTitle The title to convert
+ */
+export const htmlFriendlyToTitle = (htmlFriendlyTitle) =>
+  htmlFriendlyTitle
+    .replace(/&#([0-9]+);/g, (_, num) => String.fromCharCode(parseInt(num)))
+    .replace(
+      /&(quot|amp|lt|gt);/g,
+      (_, ref) => ({ quot: '"', amp: '&', lt: '<', gt: '>' }[ref]),
+    );
+
+/**
+ * Get contents of _data/simple-icons.json.
+ */
+export const getIconsDataString = () => {
+  const __dirname = path.dirname(fileURLToPath(import.meta.url));
+  const rootDir = path.resolve(__dirname, '..');
+  const iconDataPath = path.resolve(rootDir, '_data', 'simple-icons.json');
+  return fs.readFile(iconDataPath, 'utf8');
+};
+
+/**
+ * Get icon data as object from _data/simple-icons.json.
+ */
+export const getIconsData = async () => {
+  const fileContents = await getIconsDataString();
+  return JSON.parse(fileContents).icons;
+};
+
+/**
+ * Get the directory name from import.meta.url.
+ * @param {String} importMetaUrl import.meta.url
+ */
+export const getDirnameFromImportMeta = (importMetaUrl) =>
+  path.dirname(fileURLToPath(importMetaUrl));
diff --git a/tests/icons-cjs.test.js b/tests/icons-cjs.test.js
new file mode 100644
index 00000000..622247d8
--- /dev/null
+++ b/tests/icons-cjs.test.js
@@ -0,0 +1,19 @@
+import { exec } from 'uvu';
+import { testIcon } from './test-icon.js';
+import { getIconSlug, getIconsData } from '../scripts/utils.js';
+(async () => {
+  console.warn = () => {};
+
+  const icons = await getIconsData();
+
+  const tests = icons.map(async (icon) => {
+    const slug = getIconSlug(icon);
+    const { default: subject } = await import(`../icons/${slug}.js`);
+
+    testIcon(icon, subject, slug);
+  });
+
+  await Promise.all(tests);
+
+  exec();
+})();
diff --git a/tests/icons-esm.test.js b/tests/icons-esm.test.js
new file mode 100644
index 00000000..9b914d69
--- /dev/null
+++ b/tests/icons-esm.test.js
@@ -0,0 +1,22 @@
+import {
+  getIconsData,
+  getIconSlug,
+  slugToVariableName,
+} from '../scripts/utils.js';
+import * as simpleIcons from '../icons.mjs';
+import { testIcon } from './test-icon.js';
+import { exec } from 'uvu';
+
+(async () => {
+  const icons = await getIconsData();
+
+  icons.map((icon) => {
+    const slug = getIconSlug(icon);
+    const variableName = slugToVariableName(slug);
+    const subject = simpleIcons[variableName];
+
+    testIcon(icon, subject, slug);
+  });
+
+  exec();
+})();
diff --git a/tests/icons.test.js b/tests/icons.test.js
deleted file mode 100644
index 6db0b467..00000000
--- a/tests/icons.test.js
+++ /dev/null
@@ -1,12 +0,0 @@
-const { icons } = require('../_data/simple-icons.json');
-const { getIconSlug } = require('../scripts/utils.js');
-const testIcon = require('./test-icon.js');
-
-console.warn = () => {};
-
-icons.forEach((icon) => {
-  const slug = getIconSlug(icon);
-  const subject = require(`../icons/${slug}.js`);
-
-  testIcon(icon, subject, slug);
-});
diff --git a/tests/icons.test.mjs b/tests/icons.test.mjs
deleted file mode 100644
index d424efb3..00000000
--- a/tests/icons.test.mjs
+++ /dev/null
@@ -1,14 +0,0 @@
-import simpleIconsData from '../_data/simple-icons.json';
-import utils from '../scripts/utils.js';
-import * as simpleIcons from '../icons.mjs';
-import testIcon from './test-icon.js';
-
-const { getIconSlug, slugToVariableName } = utils;
-
-simpleIconsData.icons.forEach((icon) => {
-  const slug = getIconSlug(icon);
-  const variableName = slugToVariableName(slug);
-  const subject = simpleIcons[variableName];
-
-  testIcon(icon, subject, slug);
-});
diff --git a/tests/index.test.js b/tests/index.test.js
index db72c4e3..d4ef45cd 100644
--- a/tests/index.test.js
+++ b/tests/index.test.js
@@ -1,27 +1,32 @@
-const { icons } = require('../_data/simple-icons.json');
-const simpleIcons = require('../index.js');
-const { getIconSlug } = require('../scripts/utils');
-const { test } = require('uvu');
-const assert = require('uvu/assert');
+import simpleIcons from '../index.js';
+import { getIconSlug, getIconsData } from '../scripts/utils.js';
+import { test, exec } from 'uvu';
+import * as assert from 'uvu/assert';
 
-icons.forEach((icon) => {
-  const slug = getIconSlug(icon);
+(async () => {
+  const icons = await getIconsData();
 
-  test(`'Get' ${icon.title} by its slug`, () => {
-    const found = simpleIcons.Get(slug);
-    assert.ok(found);
-    assert.is(found.title, icon.title);
-    assert.is(found.hex, icon.hex);
-    assert.is(found.source, icon.source);
+  icons.forEach((icon) => {
+    const slug = getIconSlug(icon);
+
+    test(`'Get' ${icon.title} by its slug`, () => {
+      const found = simpleIcons.Get(slug);
+      assert.ok(found);
+      assert.is(found.title, icon.title);
+      assert.is(found.hex, icon.hex);
+      assert.is(found.source, icon.source);
+    });
   });
-});
 
-test(`Iterating over simpleIcons only exposes icons`, () => {
-  const iconArray = Object.values(simpleIcons);
-  for (let icon of iconArray) {
-    assert.ok(icon);
-    assert.type(icon, 'object');
-  }
-});
+  test(`Iterating over simpleIcons only exposes icons`, () => {
+    const iconArray = Object.values(simpleIcons);
+    for (let icon of iconArray) {
+      assert.ok(icon);
+      assert.type(icon, 'object');
+    }
+  });
 
-test.run();
+  test.run();
+
+  exec();
+})();
diff --git a/tests/package.json b/tests/package.json
new file mode 100644
index 00000000..3dbc1ca5
--- /dev/null
+++ b/tests/package.json
@@ -0,0 +1,3 @@
+{
+  "type": "module"
+}
diff --git a/tests/test-icon.js b/tests/test-icon.js
index 882f9a36..c4235a93 100644
--- a/tests/test-icon.js
+++ b/tests/test-icon.js
@@ -1,9 +1,9 @@
-const fs = require('fs');
-const path = require('path');
+import fs from 'node:fs';
+import path from 'node:path';
+import { suite } from 'uvu';
+import * as assert from 'uvu/assert';
 
 const iconsDir = path.resolve(process.cwd(), 'icons');
-const { suite } = require('uvu');
-const assert = require('uvu/assert');
 
 /**
  * Checks if icon data matches a subject icon.
@@ -11,7 +11,7 @@ const assert = require('uvu/assert');
  * @param {import('..').SimpleIcon} subject Icon to check against icon data
  * @param {String} slug Icon data slug
  */
-const testIcon = (icon, subject, slug) => {
+export const testIcon = (icon, subject, slug) => {
   const test = suite(icon.title);
   const svgPath = path.resolve(iconsDir, `${slug}.svg`);
 
@@ -69,5 +69,3 @@ const testIcon = (icon, subject, slug) => {
 
   test.run();
 };
-
-module.exports = testIcon;