diff --git a/pyproject.toml b/pyproject.toml
index 0ac031dd..5fa82d0c 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -47,7 +47,7 @@ dependencies = [
 
 [project.optional-dependencies]
 docs = [
-    "jupyter-book~=1.0",
+    "jupyter-book>=1,<3",
     "sphinx-book-theme",
     "sphinx-autodoc-typehints",
     "sphinxcontrib-autoyaml",