diff --git a/packages/ui/package.json b/packages/ui/package.json
index 1fd045b..24380e0 100644
--- a/packages/ui/package.json
+++ b/packages/ui/package.json
@@ -32,10 +32,11 @@
     "@tpmjs/utils": "workspace:*"
   },
   "devDependencies": {
+    "@testing-library/jest-dom": "^6.9.1",
+    "@testing-library/react": "^16.3.0",
     "@tpmjs/eslint-config": "workspace:*",
     "@tpmjs/test": "workspace:*",
     "@tpmjs/tsconfig": "workspace:*",
-    "@testing-library/react": "^16.3.0",
     "@types/react": "^19.0.2",
     "@types/react-dom": "^19.0.2",
     "happy-dom": "^15.11.7",
diff --git a/packages/ui/src/test-setup.ts b/packages/ui/src/test-setup.ts
new file mode 100644
index 0000000..bb02c60
--- /dev/null
+++ b/packages/ui/src/test-setup.ts
@@ -0,0 +1 @@
+import '@testing-library/jest-dom/vitest';
diff --git a/packages/ui/vitest.config.ts b/packages/ui/vitest.config.ts
index fe5b60f..266ee43 100644
--- a/packages/ui/vitest.config.ts
+++ b/packages/ui/vitest.config.ts
@@ -4,5 +4,6 @@ export default defineConfig({
   test: {
     globals: true,
     environment: 'happy-dom',
+    setupFiles: ['./src/test-setup.ts'],
   },
 });