diff -pruN 44.0-1/debian/changelog 44.0-2/debian/changelog
--- 44.0-1/debian/changelog	2024-11-10 22:30:22.000000000 +0000
+++ 44.0-2/debian/changelog	2025-09-26 08:32:16.000000000 +0000
@@ -1,3 +1,10 @@
+python-readme-renderer (44.0-2) unstable; urgency=medium
+
+  * Team upload.
+  * Add a patch from PR #332 to make the tests pass with Docutils 0.22.
+
+ -- Dmitry Shachnev <mitya57@debian.org>  Fri, 26 Sep 2025 11:32:16 +0300
+
 python-readme-renderer (44.0-1) unstable; urgency=medium
 
   * Team upload.
diff -pruN 44.0-1/debian/patches/docutils-0.22.patch 44.0-2/debian/patches/docutils-0.22.patch
--- 44.0-1/debian/patches/docutils-0.22.patch	1970-01-01 00:00:00.000000000 +0000
+++ 44.0-2/debian/patches/docutils-0.22.patch	2025-09-26 08:32:16.000000000 +0000
@@ -0,0 +1,82 @@
+From: Kurt McKee <contactme@kurtmckee.org>
+Date: Wed, 20 Aug 2025 09:32:27 -0500
+Subject: Fix a test failure caused by an internal docutils `open()` call
+
+docutils 0.22 introduced an RST stylesheet feature
+that must be able to open files during RST-to-HTML rendering.
+
+The original design of the `test_cli_explicit_format` test
+patched `pathlib.Path.open()` so it would always return the
+same open file instance...which was always closed on first use.
+This caused a failure when docutils tried to open `minimal.css`:
+
+```
+ValueError: I/O operation on closed file.
+```
+
+This change introduces a more complex mocking strategy
+that documents and meets the current technical requirements.
+
+Origin: https://github.com/pypa/readme_renderer/pull/332
+---
+ tests/test_cli.py | 47 +++++++++++++++++++++++++++++++++++++++++------
+ 1 file changed, 41 insertions(+), 6 deletions(-)
+
+diff --git a/tests/test_cli.py b/tests/test_cli.py
+index dddf5c3..3e8c928 100644
+--- a/tests/test_cli.py
++++ b/tests/test_cli.py
+@@ -46,12 +46,47 @@ def test_cli_invalid_format():
+ 
+ def test_cli_explicit_format(input_file):
+     fmt = input_file.suffix.lstrip(".")
+-    with input_file.open() as fp, \
+-            mock.patch("pathlib.Path.open", return_value=fp), \
+-            mock.patch("builtins.print") as print_:
+-        main(["-f", fmt, "no-file.invalid"])
+-        print_.assert_called_once()
+-        (result,), _ = print_.call_args
++
++    # The explicit-format tests present a number of technical challenges.
++    #
++    # 1. The filename must not have a recognized extension
++    #    to ensure that the renderer is honoring the `-f` argument.
++    #    Therefore, patching is used so the input filename can be faked.
++    #
++    # 2. docutils must be able to open stylesheet files during RST-to-HTML rendering.
++    #    Therefore, patching must be limited to readme-renderer's usage.
++    #
++    # The strategy used here is to patch `pathlib.Path.open()` until it is first called,
++    # since the first call occurs when readme-renderer reads the input file's content.
++    # After that, the patch is disabled. However, this presents additional challenges:
++    #
++    # 3. On Python <=3.11, `patch.__exit__()` cannot be called more than once.
++    # 4. `patch.stop()` cannot sufficiently undo a patch if `.__enter__()` was called.
++    #
++    # Therefore, the patch cannot be used as a context manager.
++    # It must be manually started and stopped.
++
++    fp = input_file.open()
++
++    def stop_open_patch_after_one_call():
++        open_patch.stop()
++        return fp
++
++    open_patch = mock.patch(
++        "pathlib.Path.open",
++        side_effect=stop_open_patch_after_one_call,
++    )
++
++    open_patch.start()
++
++    try:
++        with fp, mock.patch("builtins.print") as print_:
++            main(["-f", fmt, "no-file.invalid"])
++            print_.assert_called_once()
++            (result,), _ = print_.call_args
++    finally:
++        # Stop the patch regardless of the test result.
++        open_patch.stop()
+ 
+     with input_file.with_suffix(".html").open() as fp:
+         assert result.strip() == fp.read().strip()
diff -pruN 44.0-1/debian/patches/series 44.0-2/debian/patches/series
--- 44.0-1/debian/patches/series	1970-01-01 00:00:00.000000000 +0000
+++ 44.0-2/debian/patches/series	2025-09-26 08:32:16.000000000 +0000
@@ -0,0 +1 @@
+docutils-0.22.patch