From 18a7ce1d5102c1b6276f43915ae7f400f1f6c53c Mon Sep 17 00:00:00 2001
From: Ben Jeffery <ben.jeffery@bdi.ox.ac.uk>
Date: Fri, 23 Jan 2026 13:43:50 +0000
Subject: [PATCH] Pin jupyter-book <2

---
 pyproject.toml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/pyproject.toml b/pyproject.toml
index 08665fa1..538ab445 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -117,7 +117,7 @@ dev = [
     "attrs",
     "pandas",
     "stdpopsim",
-    "jupyter-book",
+    "jupyter-book<2",
     "sphinx-issues",
     "sphinx-argparse",
     "sphinxcontrib-bibtex",