From 6801c45c5d7a6068d44e785134e3b0bb9b87f03a Mon Sep 17 00:00:00 2001
From: Bruno Oliveira <bruno@pytest.org>
Date: Sat, 27 Dec 2025 10:07:11 -0300
Subject: [PATCH] Docs: pin sphinx to `<9.0`

Pinning to `<9.0` to fix doc building.

Related to https://github.com/python-trio/sphinxcontrib-trio/issues/399.
---
 doc/en/requirements.txt | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/en/requirements.txt b/doc/en/requirements.txt
index fcaaee695c9..d672a9d7e15 100644
--- a/doc/en/requirements.txt
+++ b/doc/en/requirements.txt
@@ -2,7 +2,8 @@
 pluggy>=1.5.0
 pygments-pytest>=2.5.0
 sphinx-removed-in>=0.2.0
-sphinx>=7
+# Pinning to <9.0 due to https://github.com/python-trio/sphinxcontrib-trio/issues/399.
+sphinx>=7,<9.0
 sphinxcontrib-trio
 sphinxcontrib-svg2pdfconverter
 furo