I noticed multiple places where the copyright differs:

1. marked/README.md

   Line 106 in 227cad9

   Copyright (c) 2011-2022, Christopher Jeffrey. (MIT License)

2. marked/bin/main.js

   Line 5 in 227cad9

   * Copyright (c) 2011-2013, Christopher Jeffrey (MIT License)

3. marked/bin/marked.js

   Line 5 in 227cad9

   * Copyright (c) 2011-2013, Christopher Jeffrey (MIT License)

4. marked/man/marked.1.md

   Line 88 in 227cad9

   Copyright (c) 2011-2014, Christopher Jeffrey (MIT License).

5. marked/LICENSE.md

   Lines 11 to 12 in 227cad9

   	Copyright (c) 2018+, MarkedJS (https://github.com/markedjs/)
   	Copyright (c) 2011-2018, Christopher Jeffrey (https://github.com/chjj/)

6. marked/esbuild.config.js

   Line 11 in 227cad9

   * Copyright (c) 2011-${new Date().getFullYear()}, Christopher Jeffrey. (MIT Licensed)

If I'm not mistaken, it should be Copyright (c) 2011-2025, Christopher Jeffrey everywhere.
I can submit a PR to fix this. 😄