diff --git a/benchmarks/vitest/vite.config.ts b/benchmarks/vitest/vite.config.ts
index ed9d47c..8aac99e 100644
--- a/benchmarks/vitest/vite.config.ts
+++ b/benchmarks/vitest/vite.config.ts
@@ -8,7 +8,8 @@ export default defineConfig({
             }
         },
         environment: 'happy-dom',
+        pool: 'threads',
         setupFiles: ['setupFile.ts'],
         watch: false
     },
-})
\ No newline at end of file
+})