diff --git a/docs/packages/pylzss.yaml b/docs/packages/pylzss.yaml
index c455b612e19a..47c439d47c67 100644
--- a/docs/packages/pylzss.yaml
+++ b/docs/packages/pylzss.yaml
@@ -30,3 +30,4 @@ versions:
   - filename: pylzss-0.3.8-cp314-cp314t-musllinux_1_2_riscv64.whl
     sha256: b8a68c195f59609191ddd269865f3a38deb371453ca71321d0d78f36e6f287ce
     requires-python: '>=3.8'
+- version: 0.3.9
diff --git a/patches/pylzss/0.3.9/0001-ship-py3c-s-MIT-LICENSE-in-the-wheel-s-dist-info.patch b/patches/pylzss/0.3.9/0001-ship-py3c-s-MIT-LICENSE-in-the-wheel-s-dist-info.patch
new file mode 100644
index 000000000000..ee737b5a4471
--- /dev/null
+++ b/patches/pylzss/0.3.9/0001-ship-py3c-s-MIT-LICENSE-in-the-wheel-s-dist-info.patch
@@ -0,0 +1,62 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Ludovic Henry <git@ludovic.dev>
+Date: Mon, 7 Sep 2026 19:32:04 +0200
+Subject: [PATCH] ship py3c's MIT LICENSE in the wheel's dist-info
+
+setup.py's sole extension compiles src/pylzss.c against the vendored
+src/include/py3c headers (py3c.h, which pulls in py3c/compat.h,
+py3c/comparison.h and py3c/py3shims.h) for its Python 2/3 string and
+comparison shims. Those headers are encukou/py3c, MIT-licensed
+(Copyright (c) 2015, Red Hat, Inc.), and their notice lives only as a
+comment inside py3c.h itself - there is no separate LICENSE file next
+to them for setuptools' default `LICEN[CS]E*`/`COPYING*` root glob to
+pick up.
+
+pyproject.toml declares `license = {text = "LGPL-3.0-only"}` with no
+`license-files` key, so that default glob is what ships the project's
+own COPYING/COPYING.LESSER; it never reaches into src/include/py3c/,
+and reproduced against the real
+pylzss-0.3.8-cp310-cp310-manylinux_2_5_x86_64.manylinux1_x86_64.manylinux_2_17_x86_64.manylinux2014_x86_64.whl
+from PyPI, dist-info/ carries only COPYING and COPYING.LESSER - py3c's
+MIT notice is compiled straight into the extension and shipped with no
+attribution at all.
+
+Dropping the notice at the project root as LICENSE.py3c is picked up
+by that same default glob with no packaging change, landing it in
+dist-info/licenses/ alongside the project's own licence.
+
+Upstream-Status: To upstream [not filed against m1stadev/pylzss from this automated port; a maintainer should report it upstream]
+---
+ LICENSE.py3c | 21 +++++++++++++++++++++
+ 1 file changed, 21 insertions(+)
+ create mode 100644 LICENSE.py3c
+
+diff --git a/LICENSE.py3c b/LICENSE.py3c
+new file mode 100644
+index 0000000..f53284c
+--- /dev/null
++++ b/LICENSE.py3c
+@@ -0,0 +1,21 @@
++The MIT License (MIT)
++
++Copyright (c) 2015, Red Hat, Inc. and/or its affiliates
++
++Permission is hereby granted, free of charge, to any person obtaining a copy
++of this software and associated documentation files (the "Software"), to deal
++in the Software without restriction, including without limitation the rights
++to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
++copies of the Software, and to permit persons to whom the Software is
++furnished to do so, subject to the following conditions:
++
++The above copyright notice and this permission notice shall be included in all
++copies or substantial portions of the Software.
++
++THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
++IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
++FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
++AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
++LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
++OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
++SOFTWARE.
+--
+2.50.1 (Apple Git-155)