diff --git a/package.json b/package.json
index 9db467e..25c0f4f 100644
--- a/package.json
+++ b/package.json
@@ -36,7 +36,7 @@
     "@types/node": "^22.0.0",
     "tsup": "^8.3.0",
     "typescript": "^5.7.2",
-    "vitest": "^2.1.8"
+    "vitest": "^4.1.4"
   },
   "engines": {
     "node": ">=20.0.0",