requirements: Update sphinx requirements

Change-Id: I303ad87855b9535b0076f72a1c9e401c09f4d050
---
M docs/conf.py
M docs/requirements.txt
2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/docs/conf.py b/docs/conf.py
index f1af6c8..7ce46f6 100644
--- a/docs/conf.py
+++ b/docs/conf.py
@@ -50,7 +50,7 @@
 
 # If your documentation needs a minimal Sphinx version, state it here.
 #
-needs_sphinx = '8.1.1'
+needs_sphinx = '8.1.3'
 
 # Add any Sphinx extension module names here, as strings. They can be
 # extensions coming with Sphinx (named 'sphinx.ext.*') or your custom
diff --git a/docs/requirements.txt b/docs/requirements.txt
index 0dbffe9..252866c 100644
--- a/docs/requirements.txt
+++ b/docs/requirements.txt
@@ -1,10 +1,10 @@
 # This is a PIP requirements file for building Sphinx documentation of Pywikibot
 # ../requirements.txt is also needed.
-# Note: Python 3.9 is required for sphinx 7.2
-sphinx >= 8.1.1
+# Note: Python 3.10 is required for sphinx 8
+sphinx >= 8.1.3
 rstcheck >=6.2.4
 sphinxext-opengraph >= 0.9.1
 sphinx-copybutton >= 0.5.2
 sphinx-tabs >= 3.4.7
-tomli >= 2.0.1; python_version < '3.11'
+tomli >= 2.2.1; python_version < '3.11'
 furo >= 2024.8.6

