diff --git a/pyproject.toml b/pyproject.toml
index 0ca3aeb13..6010ce688 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -44,7 +44,7 @@ dependencies = [
 
 [project.optional-dependencies]
 docs = [
-    "jupyter-book~=1.0",
+    "jupyter-book>=1,<3",
     "sphinx-book-theme~=1.0",
     "sphinx-autodoc-typehints>=2,<4",
     "sphinxcontrib-autoyaml~=1.0",