I am using unstable_cache and I want to revalidate the data on demand but when calling revalidateTag or revalidating the whole layout I am getting a warning log

Failed to revalidate tag _N_T_/layout TypeError: fetch failed
    at node:internal/deps/undici/undici:12502:13
    at process.processTicksAndRejections (node:internal/process/task_queues:95:5)
    at async rF.revalidateTag (/var/task/node_modules/.pnpm/next@14.2.0_@babel+core@7.24.4_react-dom@18.2.0_react@18.2.0/node_modules/next/dist/compiled/next-server/server.runtime.prod.js:17:16933)
    at async Promise.all (index 0) {
  [cause]: ConnectTimeoutError: Connect Timeout Error (attempted addresses: 18.171.114.18:443)
      at onConnectTimeout (node:internal/deps/undici/undici:6635:28)
      at node:internal/deps/undici/undici:6587:50
      at Immediate._onImmediate (node:internal/deps/undici/undici:6619:13)
      at process.processImmediate (node:internal/timers:478:21)
      at process.callbackTrampoline (node:internal/async_hooks:130:17) {
    code: 'UND_ERR_CONNECT_TIMEOUT'
  }
}

I am using node 20.x on vercel. How to fix it?