diff --git a/packages/drs-mcp-server/package.json b/packages/drs-mcp-server/package.json
index 0e57497..6229845 100644
--- a/packages/drs-mcp-server/package.json
+++ b/packages/drs-mcp-server/package.json
@@ -37,7 +37,7 @@
     "prettier": "^3.8.3",
     "typescript": "^6.0.3",
     "vite": "^6.4.3",
-    "vitest": "^4.1.0"
+    "vitest": "^5.0.0"
   },
   "engines": {
     "node": ">=20.0.0"