Pin jupyter-book <2

benjeffery · hyanwong · commit 45cc781c884f · 2026-01-24T16:32:55.000Z
diff --git 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",
