diff --git a/docs/requirements.txt b/docs/requirements.txt
index d59ee6f7d..d7f3a4176 100644
--- a/docs/requirements.txt
+++ b/docs/requirements.txt
@@ -1,5 +1,5 @@
 mkdocs==1.4.3
-mkdocs-material==9.1.20
+mkdocs-material==9.1.21
 pymdown-extensions==10.1
 mdx_truly_sane_lists==1.3
 mkdocs-redirects==1.2.1