diff --git a/services/backend/package.json b/services/backend/package.json
index 0c1c36b4..9b4cd785 100644
--- a/services/backend/package.json
+++ b/services/backend/package.json
@@ -81,7 +81,7 @@
     "ts-node": "^10.9.2",
     "typescript": "^5.9.2",
     "typescript-eslint": "^8.56.1",
-    "vitest": "^3.2.4",
+    "vitest": "^4.1.5",
     "webpack": "^5.105.4",
     "webpack-cli": "^7.0.2",
     "webpack-node-externals": "^3.0.0"