diff --git a/test/bip39.test.ts b/test/bip39.test.ts
index a78a183..f92d997 100644
--- a/test/bip39.test.ts
+++ b/test/bip39.test.ts
@@ -5,13 +5,13 @@ import {
   mnemonicToSeed,
   mnemonicToSeedSync,
   validateMnemonic,
-} from '..';
-import { wordlist as englishWordlist } from '../wordlists/english';
-import { wordlist as japaneseWordlist } from '../wordlists/japanese';
-import { wordlist as spanishWordlist } from '../wordlists/spanish';
-import { wordlist as portugueseWordlist } from '../wordlists/portuguese';
+} from '../esm/index.js';
+import { wordlist as englishWordlist } from '../esm/wordlists/english.js';
+import { wordlist as japaneseWordlist } from '../esm/wordlists/japanese.js';
+import { wordlist as spanishWordlist } from '../esm/wordlists/spanish.js';
+import { wordlist as portugueseWordlist } from '../esm/wordlists/portuguese.js';
 import { bytesToHex as toHex, hexToBytes } from '@noble/hashes/utils';
-import { deepStrictEqual, throws } from './assert';
+import { deepStrictEqual, throws } from './assert.js';
 import { should, describe } from 'micro-should';
 
 export function equalsBytes(a: Uint8Array, b: Uint8Array): boolean {
diff --git a/test/package.json b/test/package.json
new file mode 100644
index 0000000..76d75c2
--- /dev/null
+++ b/test/package.json
@@ -0,0 +1,6 @@
+{
+  "name": "benchmark",
+  "private": true,
+  "type": "module",
+  "version": "0.1.0"
+}
diff --git a/test/tsconfig.json b/test/tsconfig.json
index f5e1852..9d54990 100644
--- a/test/tsconfig.json
+++ b/test/tsconfig.json
@@ -1,7 +1,8 @@
 {
   "compilerOptions": {
     "target": "es2020",
-    "module": "commonjs",
+    "module": "NodeNext",
+    "moduleResolution": "NodeNext",
     "strict": true,
     "esModuleInterop": true,
     "downlevelIteration": true,