diff --git a/test/mo-compiler-test.js b/test/mo-compiler-test.js
index df1fbf0..3b0a8b6 100644
--- a/test/mo-compiler-test.js
+++ b/test/mo-compiler-test.js
@@ -1,9 +1,9 @@
+import { promisify } from 'node:util';
+import path from 'node:path';
+import { mo } from '../src/index.js';
+import { readFile as fsReadFile } from 'node:fs';
+import { fileURLToPath } from 'node:url';
 import * as chai from 'chai';
-import { promisify } from 'util';
-import path from 'path';
-import { mo } from '../lib/index.js';
-import { readFile as fsReadFile } from 'fs';
-import { fileURLToPath } from 'url';
 
 const __filename = fileURLToPath(import.meta.url);
 const __dirname = path.dirname(__filename);
diff --git a/test/mo-parser-test.js b/test/mo-parser-test.js
index 1fd6c86..4391471 100644
--- a/test/mo-parser-test.js
+++ b/test/mo-parser-test.js
@@ -1,9 +1,9 @@
+import { promisify } from 'node:util';
+import path from 'node:path';
+import { readFile as fsReadFile } from 'node:fs';
+import { fileURLToPath } from 'node:url';
 import * as chai from 'chai';
-import { promisify } from 'util';
-import path from 'path';
-import { mo } from '../lib/index.js';
-import { readFile as fsReadFile } from 'fs';
-import { fileURLToPath } from 'url';
+import { mo } from '../src/index.js';
 
 const __filename = fileURLToPath(import.meta.url);
 const __dirname = path.dirname(__filename);
diff --git a/test/module.mjs b/test/module.mjs
index 19ead2b..b1b48b0 100644
--- a/test/module.mjs
+++ b/test/module.mjs
@@ -1,5 +1,5 @@
 import { expect } from 'chai';
-import { po, mo } from '../lib/index.js';
+import { po, mo } from '../src/index.js';
 
 describe('esm module', () => {
   it('should allow named imports', () => {
diff --git a/test/po-compiler-test.js b/test/po-compiler-test.js
index ca4eb03..0e969ce 100644
--- a/test/po-compiler-test.js
+++ b/test/po-compiler-test.js
@@ -1,10 +1,10 @@
-import { EOL } from 'os';
-import { promisify } from 'util';
-import path from 'path';
-import { readFile as fsReadFile } from 'fs';
+import { readFile as fsReadFile } from 'node:fs';
+import { promisify } from 'node:util';
+import path from 'node:path';
+import { EOL } from 'node:os';
+import { fileURLToPath } from 'node:url';
+import { po } from '../src/index.js';
 import * as chai from 'chai';
-import { po } from '../lib/index.js';
-import { fileURLToPath } from 'url';
 
 const __filename = fileURLToPath(import.meta.url);
 const __dirname = path.dirname(__filename);
diff --git a/test/po-obsolete-test.js b/test/po-obsolete-test.js
index 437d08f..d8a4a18 100644
--- a/test/po-obsolete-test.js
+++ b/test/po-obsolete-test.js
@@ -1,10 +1,10 @@
-import { EOL } from 'os';
+import { EOL } from 'node:os';
+import path from 'node:path';
+import fs from 'node:fs';
+import { promisify } from 'node:util';
 import * as chai from 'chai';
-import { promisify } from 'util';
-import path from 'path';
-import fs from 'fs';
-import * as gettextParser from '../lib/index.js';
-import { fileURLToPath } from 'url';
+import * as gettextParser from '../src/index.js';
+import { fileURLToPath } from 'node:url';
 
 const __filename = fileURLToPath(import.meta.url);
 const __dirname = path.dirname(__filename);
diff --git a/test/po-parser-test.js b/test/po-parser-test.js
index 55f4f4b..644e222 100644
--- a/test/po-parser-test.js
+++ b/test/po-parser-test.js
@@ -1,9 +1,9 @@
 import * as chai from 'chai';
-import { promisify } from 'util';
-import path from 'path';
-import fs from 'fs';
-import * as gettextParser from '../lib/index.js';
-import { fileURLToPath } from 'url';
+import { promisify } from 'node:util';
+import path from 'node:path';
+import fs from 'node:fs';
+import * as gettextParser from '../src/index.js';
+import { fileURLToPath } from 'node:url';
 
 const __filename = fileURLToPath(import.meta.url);
 const __dirname = path.dirname(__filename);
diff --git a/test/shared.js b/test/shared.js
index c40dfd6..0263c02 100644
--- a/test/shared.js
+++ b/test/shared.js
@@ -1,11 +1,9 @@
-'use strict';
-
+import { promisify } from 'node:util';
+import path from 'node:path';
+import { readFile as fsReadFile } from 'node:fs';
+import { fileURLToPath } from 'node:url';
 import * as chai from 'chai';
-import { promisify } from 'util';
-import path from 'path';
-import { formatCharset, parseHeader, generateHeader, foldLine, parseNPluralFromHeadersSafely } from '../lib/shared.js';
-import { readFile as fsReadFile } from 'fs';
-import { fileURLToPath } from 'url';
+import { formatCharset, parseHeader, generateHeader, foldLine, parseNPluralFromHeadersSafely } from '../src/shared.js';
 
 const __filename = fileURLToPath(import.meta.url);
 const __dirname = path.dirname(__filename);