diff --git a/doc/development/hacking-on-gitea.en-us.md b/doc/development/hacking-on-gitea.en-us.md
index 0f999215..c13f2239 100644
--- a/doc/development/hacking-on-gitea.en-us.md
+++ b/doc/development/hacking-on-gitea.en-us.md
@@ -48,6 +48,9 @@ Gitea uses `gofmt` to format source code. However, the results of
 recommended to install the version of Go that our continuous integration is
 running. As of last update, the Go version should be {{< go-version >}}.
 
+To lint the template files, ensure [Python](https://www.python.org/) and
+[Poetry](https://python-poetry.org/) are installed.
+
 ## Installing Make
 
 Gitea makes heavy use of Make to automate tasks and improve development. This