diff --git a/packages/app/vitest.config.ts b/packages/app/vitest.config.ts
index 6c6f5c888..a1ffa88a9 100644
--- a/packages/app/vitest.config.ts
+++ b/packages/app/vitest.config.ts
@@ -31,6 +31,7 @@ export default defineConfig({
         extends: true,
         test: {
           name: "browser",
+          fileParallelism: false,
           include: ["src/**/*.browser.{test,spec}.{ts,tsx}"],
           browser: {
             enabled: true,