diff --git a/Gitea/readme.md b/Gitea/readme.md
index 744741e..d63472c 100644
--- a/Gitea/readme.md
+++ b/Gitea/readme.md
@@ -24,7 +24,7 @@ To install the theme for all Gitea users:
 If you use the Stylus browser extension, you can use the [`theme-gitea-modern.user.css`][usertheme-file] file to apply to any Gitea instance.
 
 ### Contributing
-To make changes, always base them on [`theme-gitea-modern.styl`](theme-gitea-modern.styl), which is written for any CSS preprocessor that supports CSS nesting, like 'Stylus' (recommended) or 'Less'.
+To make changes, always base them on [`theme-gitea-modern.styl`](theme-gitea-modern.styl), which requires the [Stylus preprocessor](https://stylus-lang.com/).
 When making contributions, don't use the compiled version for your changes.
 
 [theme-file]: https://codeberg.org/Freeplay/CSS-Styles/raw/branch/main/Gitea/theme-gitea-modern.css