diff --git a/docs/pip/dependencies.md b/docs/pip/dependencies.md
index 0ee3ae477..9f9610fdd 100644
--- a/docs/pip/dependencies.md
+++ b/docs/pip/dependencies.md
@@ -38,10 +38,11 @@ more details on getting started with a `pyproject.toml`.
 
 ## Using `requirements.in`
 
-It is also common to use a lightweight `requirements.txt` format to declare the dependencies for the
-project. Each requirement is defined on its own line. Commonly, this file is called
-`requirements.in` to distinguish it from `requirements.txt` which is used for the locked
-dependencies.
+It is also common to use a lightweight
+[requirements file format](https://pip.pypa.io/en/stable/reference/requirements-file-format/) to
+declare the dependencies for the project. Each requirement is defined on its own line. Commonly,
+this file is called `requirements.in` to distinguish it from `requirements.txt` which is used for
+the locked dependencies.
 
 To define dependencies in a `requirements.in` file: