diff --git a/package.json b/package.json
index 4de2a68..1f04931 100644
--- a/package.json
+++ b/package.json
@@ -55,7 +55,7 @@
         "tmp": "^0.2.4",
         "tsup": "^8.5.0",
         "typescript": "^5.9.2",
-        "vitest": "^3.2.4",
+        "vitest": "^4.0.15",
         "zod": "^4.1.12"
     }
 }