diff --git a/pyproject.toml b/pyproject.toml
index 19d0abb3..24957fc8 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -58,7 +58,7 @@ docs = [
     "numpydoc==1.7.0",
     "sphinx==7.3.7",
     "sphinx_rtd_theme==2.0.0",
-    "sphinx_book_theme==1.1.3",
+    "sphinx_book_theme==1.2.0",
     "sphinx-copybutton==0.5.2",
     "nbsphinx==0.9.4",
     "nbsphinx-link==1.3.0",