diff --git a/packages/keystatic/package.json b/packages/keystatic/package.json
index 0184d7048..7c591e93a 100644
--- a/packages/keystatic/package.json
+++ b/packages/keystatic/package.json
@@ -105,7 +105,7 @@
     "dist"
   ],
   "scripts": {
-    "setup": "ts-gql build && tsx scripts/l10n.cts && tsx scripts/build-prism.cts",
+    "setup": "ts-gql build && tsx scripts/l10n.ts && tsx scripts/build-prism.ts",
     "build": "pnpm run setup && next build",
     "dev": "next dev",
     "start": "next start"
diff --git a/packages/keystatic/scripts/build-prism.cts b/packages/keystatic/scripts/build-prism.ts
similarity index 78%
rename from packages/keystatic/scripts/build-prism.cts
rename to packages/keystatic/scripts/build-prism.ts
index 73a14fb84..647916f4c 100644
--- a/packages/keystatic/scripts/build-prism.cts
+++ b/packages/keystatic/scripts/build-prism.ts
@@ -1,4 +1,5 @@
 import fs from 'fs/promises';
+import { fileURLToPath } from 'url';
 
 const languages = [
   'clike',
@@ -45,11 +46,18 @@ const languages = [
   const otherLanguages = (
     await Promise.all(
       languages.map(lang =>
-        fs.readFile(require.resolve(`prismjs/components/prism-${lang}`), 'utf8')
+        fs.readFile(
+          fileURLToPath(
+            import.meta.resolve(`prismjs/components/prism-${lang}`)
+          ),
+          'utf8'
+        )
       )
     )
   ).join('\n\n');
-  const prism = (await fs.readFile(require.resolve('prismjs'), 'utf8'))
+  const prism = (
+    await fs.readFile(fileURLToPath(import.meta.resolve('prismjs')), 'utf8')
+  )
     .replace(
       `if (typeof module !== 'undefined' && module.exports) {
 \tmodule.exports = Prism;
@@ -72,7 +80,7 @@ if (typeof global !== 'undefined') {
       `var _self = globalThis;`
     );
   await fs.writeFile(
-    `${__dirname}/../src/form/fields/document/DocumentEditor/prism.js`,
+    `src/form/fields/document/DocumentEditor/prism.js`,
     '/* eslint-disable */\nglobalThis.Prism = { manual: true };\n' +
       prism +
       '\n' +
diff --git a/packages/keystatic/scripts/l10n.cts b/packages/keystatic/scripts/l10n.ts
similarity index 96%
rename from packages/keystatic/scripts/l10n.cts
rename to packages/keystatic/scripts/l10n.ts
index 40a0d05ff..6ba1a7a17 100644
--- a/packages/keystatic/scripts/l10n.cts
+++ b/packages/keystatic/scripts/l10n.ts
@@ -2,7 +2,7 @@ import fs from 'fs/promises';
 import path from 'path';
 import { compileString } from '@internationalized/string-compiler';
 
-const localesDir = path.join(__dirname, '../src/app/l10n');
+const localesDir = 'src/app/l10n';
 (async () => {
   const locales: Record<string, Record<string, string>> = {};
   await Promise.all(