diff --git a/package.json b/package.json
index 0b8575d..ad7ace6 100644
--- a/package.json
+++ b/package.json
@@ -63,7 +63,7 @@
     "eslint": "^9.17.0",
     "tsx": "^4.19.2",
     "typescript": "^5.7.2",
-    "vitest": "^2.1.8",
+    "vitest": "^4.1.4",
     "@eslint/js": "^9.39.1",
     "globals": "^16.5.0",
     "typescript-eslint": "^8.46.1"