diff --git a/vitest.config.js b/vitest.config.js
new file mode 100644
index 0000000..083159a
--- /dev/null
+++ b/vitest.config.js
@@ -0,0 +1,8 @@
+// @ts-check
+import { defineConfig } from 'vitest/config';
+
+export default defineConfig({
+  test: {
+    setupFiles: ['vitest.setup.ts'],
+  },
+});
diff --git a/vitest.setup.ts b/vitest.setup.ts
new file mode 100644
index 0000000..3389179
--- /dev/null
+++ b/vitest.setup.ts
@@ -0,0 +1,3 @@
+import fc from 'fast-check';
+
+fc.configureGlobal({ interruptAfterTimeLimit: 4000 }); // default test timeout being 5s