diff --git a/pyproject.toml b/pyproject.toml
index dde1004..c55c574 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -39,7 +39,7 @@ docs = [
     "autodoc_pydantic",
     "matplotlib",
     "jupytext",
-    "jupyter-book==2.1.5",
+    "jupyter-book==2.1.6",
     "sphinx-autodoc-typehints",
     "sphinx-click",
     ]