diff --git a/gh-pages/requirements-dev.txt b/gh-pages/requirements-dev.txt
index 597380702c..7907e5c235 100644
--- a/gh-pages/requirements-dev.txt
+++ b/gh-pages/requirements-dev.txt
@@ -1,4 +1,4 @@
 mkdocs~=1.4.3
 mkdocs-awesome-pages-plugin~=2.9.1
-mkdocs-material~=9.1.19
+mkdocs-material~=9.1.21
 mkdocs-git-revision-date-plugin~=0.3.2