diff --git a/UNRELEASED.md b/UNRELEASED.md
index f50d13b618d..023cfe018af 100644
--- a/UNRELEASED.md
+++ b/UNRELEASED.md
@@ -14,4 +14,6 @@
 
 ### Code quality
 
+- Converted `/tests/build.test.js` to TypeScript ([#2617](https://github.com/Shopify/polaris-react/pull/2617))
+
 ### Deprecations
diff --git a/tests/build.test.js b/tests/build.test.ts
similarity index 96%
rename from tests/build.test.js
rename to tests/build.test.ts
index 7f71222ae5b..b0d10b23d33 100644
--- a/tests/build.test.js
+++ b/tests/build.test.ts
@@ -1,7 +1,7 @@
-const execSync = require('child_process').execSync;
-const fs = require('fs-extra');
-const glob = require('glob');
-const packageJSON = require('../package.json');
+import {execSync} from 'child_process';
+import fs from 'fs-extra';
+import glob from 'glob';
+import packageJSON from '../package.json';
 
 describe('build', () => {
   beforeAll(() => {