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nextjs - 💡(How to fix) Fix [baseline-browser-mapping] The data in this module is over two months old. [1 comments, 2 participants]

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vercel/next.js#86635•Fetched 2026-04-08 02:10:03
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Error Message

This console error shows up: After further investigation it appears that the error originates from next/dist/compiled/browserslist The error message should not be displayed.

Code Example

[baseline-browser-mapping] The data in this module is over two months old.  To ensure accurate Baseline data, please update: `npm i baseline-browser-mapping@latest -D`

---

Operating System:
  Platform: linux
  Arch: x64
  Version: #1 SMP PREEMPT_DYNAMIC Fri, 14 Nov 2025 06:54:20 +0000
  Available memory (MB): 61919
  Available CPU cores: 32
Binaries:
  Node: 24.3.0
  npm: 11.4.2
  Yarn: N/A
  pnpm: N/A
Relevant Packages:
  next: 16.0.5 // Latest available version is detected (16.0.5).
  eslint-config-next: 15.2.3
  react: 19.2.0
  react-dom: 19.2.0
  typescript: 5.9.3
Next.js Config:
  output: N/A
RAW_BUFFERClick to expand / collapse

Link to the code that reproduces this issue

https://github.com/vercel/next.js

To Reproduce

  1. Update to Next 16.0.5
  2. Run npm run dev

This console error shows up:

[baseline-browser-mapping] The data in this module is over two months old.  To ensure accurate Baseline data, please update: `npm i baseline-browser-mapping@latest -D`

Running npm why baseline-browser-mapping yields no results.

After further investigation it appears that the error originates from next/dist/compiled/browserslist

<img width="2432" height="690" alt="Image" src="https://github.com/user-attachments/assets/0e1ae2ad-591b-451d-b8c6-271730efb1c4" />

Current vs. Expected behavior

The error message should not be displayed.

Provide environment information

Operating System:
  Platform: linux
  Arch: x64
  Version: #1 SMP PREEMPT_DYNAMIC Fri, 14 Nov 2025 06:54:20 +0000
  Available memory (MB): 61919
  Available CPU cores: 32
Binaries:
  Node: 24.3.0
  npm: 11.4.2
  Yarn: N/A
  pnpm: N/A
Relevant Packages:
  next: 16.0.5 // Latest available version is detected (16.0.5).
  eslint-config-next: 15.2.3
  react: 19.2.0
  react-dom: 19.2.0
  typescript: 5.9.3
Next.js Config:
  output: N/A

Which area(s) are affected? (Select all that apply)

Runtime

Which stage(s) are affected? (Select all that apply)

next dev (local)

Additional context

No response

extent analysis

TL;DR

Update the baseline-browser-mapping package to the latest version using npm i baseline-browser-mapping@latest -D to resolve the console error.

Guidance

  • The error message suggests that the data in the baseline-browser-mapping module is outdated, which is causing the issue.
  • Run npm i baseline-browser-mapping@latest -D to update the package to the latest version.
  • Verify that the error is resolved by running npm run dev again after updating the package.
  • If the issue persists, investigate the dependencies of next/dist/compiled/browserslist to ensure that they are up-to-date.

Example

No code snippet is necessary for this issue, as the solution involves updating a package using npm.

Notes

The issue seems to be specific to the next package version 16.0.5 and the baseline-browser-mapping package. Updating the baseline-browser-mapping package should resolve the issue, but if problems persist, further investigation may be necessary.

Recommendation

Apply workaround: Update the baseline-browser-mapping package to the latest version using npm i baseline-browser-mapping@latest -D, as this is a simple and targeted solution that directly addresses the error message.

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