diff --git a/requirements.txt b/requirements.txt
index 359f819..2bd7b13 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -5,7 +5,7 @@ Markdown ~= 3.3.7
 mkdocs == 1.4.3
 mkdocs-git-revision-date-localized-plugin ~= 1.2.0
 mkdocs-macros-plugin ~= 0.7.0
-mkdocs-material == 9.1.15
+mkdocs-material == 9.1.21
 mkdocs-minify-plugin ~= 0.6.4
 pip-audit == 2.5.6
 Pygments ~= 2.15.1