diff --git a/requirements/doc.txt b/requirements/doc.txt
index 0fef2d8..73e047b 100644
--- a/requirements/doc.txt
+++ b/requirements/doc.txt
@@ -1,3 +1,3 @@
 mkdocs==1.1.2
-mkdocs-material==5.3.0
+mkdocs-material==9.5.22
 Pygments==2.6.1