diff --git a/pyproject.toml b/pyproject.toml
index 399ab8709a6..09bebf6d1c7 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -6,7 +6,7 @@ description = "Defaut package, used for development or readthedocs"
 [project.optional-dependencies]
 docs = [
   "mkdocs==1.4.3",
-  "mkdocs-material==9.1.18",
+  "mkdocs-material==9.1.21",
   "mdx_truly_sane_lists==1.3",
 ]