From e7625f0cfecd8582dbafe0069f68e4af0d5d69c3 Mon Sep 17 00:00:00 2001
From: Tom Most <twm@freecog.net>
Date: Sun, 30 Apr 2023 14:13:18 -0700
Subject: [PATCH] Fix the docs build

---
 .readthedocs.yml | 6 +++++-
 setup.py         | 2 +-
 tox.ini          | 1 +
 3 files changed, 7 insertions(+), 2 deletions(-)

diff --git a/.readthedocs.yml b/.readthedocs.yml
index f7e6d592..831e70b4 100644
--- a/.readthedocs.yml
+++ b/.readthedocs.yml
@@ -8,8 +8,12 @@ formats:
   - pdf
   - epub
 
+build:
+  os: ubuntu-22.04
+  tools:
+    python: "3.11"
+
 python:
-  version: 3.8
   install:
     - method: pip
       path: .
diff --git a/setup.py b/setup.py
index b154265c..83027633 100644
--- a/setup.py
+++ b/setup.py
@@ -43,7 +43,7 @@
                 "werkzeug==2.0.3",
             ],
             "docs": [
-                "sphinx>=1.4.8",
+                "sphinx<7.0.0",  # Removal of 'style' key breaks RTD.
             ],
         },
         package_data={"treq": ["_version"]},
diff --git a/tox.ini b/tox.ini
index 86821463..2c308623 100644
--- a/tox.ini
+++ b/tox.ini
@@ -53,6 +53,7 @@ commands =
 [testenv:docs]
 extras = docs
 changedir = docs
+basepython = python3.8
 commands =
     sphinx-build -b html . html