diff --git a/pyproject.toml b/pyproject.toml
index 9f29a486..cf03a376 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -54,7 +54,7 @@ docs = [
     "myst-nb==1.4.0",
     "sphinx-book-theme==1.2.0",
     "sphinx-argparse==0.5.2",
-    "sphinx-toolbox==4.1.2",
+    "sphinx-toolbox==4.2.0",
 ]
 
 [project.scripts]