diff --git a/package.json b/package.json
index 4b63142..5e9d7f5 100644
--- a/package.json
+++ b/package.json
@@ -10,5 +10,6 @@
   },
   "engines": {
     "node": ">= 14.15.0"
-  }
+  },
+  "type": "module"
 }
diff --git a/src/build.js b/src/build.js
index 71dcb27..e91cd90 100644
--- a/src/build.js
+++ b/src/build.js
@@ -2,14 +2,15 @@
 
 // for deployment outside of GitLab CI, e.g. Cloudflare Pages and Netlify
 
-const { stream: gotStream } = require('got')
-const got = require('got')
-const unzip = require('extract-zip')
-const { join } = require('path')
-const { mkdir } = require('fs/promises')
-const { createWriteStream } = require('fs')
-const { pipeline } = require('stream/promises')
+import got from 'got'
+import unzip from 'extract-zip'
+import { dirname, join } from 'node:path'
+import { mkdir } from 'node:fs/promises'
+import { createWriteStream } from 'node:fs'
+import { pipeline } from 'node:stream/promises'
+import { fileURLToPath } from 'node:url'
 
+const __dirname = dirname(fileURLToPath(import.meta.url))
 const rootPath = join(__dirname, '..')
 const tmpPath = join(rootPath, 'tmp')
 const publicPath = join(rootPath, 'public')
@@ -35,7 +36,7 @@ const f = async () => {
   console.log(`Downloading artifacts.zip from "${artifactsUrl}"`)
   try {
     await pipeline(
-      gotStream(artifactsUrl),
+      got.stream(artifactsUrl),
       createWriteStream(zipPath)
     )
     await pipelineStatus(pipelineUrl)
@@ -50,7 +51,7 @@ const f = async () => {
 
     try {
       await pipeline(
-        gotStream(ghMirror),
+        got.stream(ghMirror),
         createWriteStream(zipPath)
       )
     } catch ({ message }) {
diff --git a/src/script.js b/src/script.js
index 5ea227a..d8dbd49 100644
--- a/src/script.js
+++ b/src/script.js
@@ -1,14 +1,17 @@
 'use strict'
 
-const { join } = require('path')
-const { appendFile, readdir, readFile, rm } = require('fs/promises')
+import { dirname, join } from 'node:path'
+import { appendFile, readdir, readFile, rm } from 'node:fs/promises'
+import { fileURLToPath } from 'node:url'
+
+const __dirname = dirname(fileURLToPath(import.meta.url))
 const { parse } = JSON
 
 const f = async () => {
   // __dirname is src/
-  const outputFile = join(__dirname, '../tmp/tracking-data-raw.txt')
+  const outputFile = join(__dirname, '..', 'tmp','tracking-data-raw.txt')
   await rm(outputFile, { force: true })
-  const domains = join(__dirname, '../tmp/tracker-radar/domains')
+  const domains = join(__dirname, '..', 'tmp', 'tracker-radar', 'domains')
   const countries = await readdir(domains)
   for (const country of countries) {
     const files = await readdir(join(domains, country))