diff --git a/package.json b/package.json
index 4b88c493..bdbc0c4b 100644
--- a/package.json
+++ b/package.json
@@ -54,8 +54,8 @@
     "prettier-check": "prettier . --check --cache",
     "prettier-fix": "prettier . --write --cache",
     "test": "turbo run testing check-engines --continue",
-    "test-run": "(cd test/ && node ./run.js)",
-    "test-run-record": "(cd test/ && node ./run.js record)",
+    "test-run": "(cd test/ && node ./run.mjs)",
+    "test-run-record": "(cd test/ && node ./run.mjs record)",
     "tsc": "tsc",
     "tsc-watch": "tsc --watch"
   },
diff --git a/test/run.js b/test/run.mjs
similarity index 98%
rename from test/run.js
rename to test/run.mjs
index a7c41a91..51606eed 100755
--- a/test/run.js
+++ b/test/run.mjs
@@ -1,8 +1,12 @@
 #!/bin/node
 /* eslint n/no-process-exit: "off" -- WIP */
-const {execSync} = require('node:child_process');
-const fs = require('node:fs');
-const path = require('node:path');
+import {execSync} from 'node:child_process';
+import * as fs from 'node:fs';
+import * as path from 'node:path';
+import {fileURLToPath} from 'node:url';
+
+const __filename = fileURLToPath(import.meta.url);
+const __dirname = path.dirname(__filename);
 
 const CMD = 'elm-review --no-color';
 const TMP = path.join(__dirname, 'temporary');