diff --git a/vite-frontend/package.json b/vite-frontend/package.json
index ce50de2..6c2b0b4 100644
--- a/vite-frontend/package.json
+++ b/vite-frontend/package.json
@@ -69,6 +69,7 @@
     "@types/react-dom": "18.3.0",
     "@typescript-eslint/eslint-plugin": "8.31.1",
     "@typescript-eslint/parser": "8.31.1",
+    "@vitejs/plugin-legacy": "^5.4.3",
     "@vitejs/plugin-react": "4.4.1",
     "eslint": "9.25.1",
     "eslint-config-prettier": "9.1.0",