diff --git a/README.org b/README.org
index 255b422..42f1829 100644
--- a/README.org
+++ b/README.org
@@ -5104,8 +5104,9 @@ Available versions: 0.2.0, 0.1.1, 0.1.0
   :group 'pip
   :type '(repeat string))
 
-;; Frozen until the release of jupyterlab-4.0.0.
+;; Frozen until the release of jupyterlab-4.0.0 or other packages.
 (setopt pip-frozen-packages '("aiofiles"
+                              "docutils"
                               "jupyter-server-ydoc"
                               "jupyter-ydoc"
                               "y-py"