diff --git a/vitest.config.mts b/vitest.config.mts
index fe60122..c1fa51c 100644
--- a/vitest.config.mts
+++ b/vitest.config.mts
@@ -4,15 +4,14 @@ export default defineConfig({
   test: {
     typecheck: { enabled: true },
     setupFiles: ['vitest.setup.ts'],
+    pool: 'forks',
     poolOptions: {
-      threads: {
-        singleThread: true,
+      forks: {
+        singleFork: true,
       },
     },
     exclude: ['*skipped.test*'],
     sequence: {
-      hooks: 'stack',
-      concurrent: false,
       shuffle: true,
     },
     coverage: {
@@ -22,4 +21,10 @@ export default defineConfig({
       reporter: [['lcov', { projectRoot: './' }], ['text']],
     },
   },
+  // https://github.com/vitest-dev/vitest/issues/6152
+  server: {
+    fs: {
+      cachedChecks: false,
+    },
+  },
 });