diff --git a/README.org b/README.org
index 7f313d2..29a1672 100644
--- a/README.org
+++ b/README.org
@@ -6402,7 +6402,7 @@ Available versions: 0.2.0, 0.1.1, 0.1.0
   :type '(repeat string))
 
 ;; Updating "docutils" may require a compatible "Sphinx" release.
-;; (setopt pip-frozen-packages '("docutils"))
+(setopt pip-frozen-packages '("ruff"))
 #+end_src
 
 #+caption[Emacs interface to list outdated Python packages]: