diff --git a/docs/requirements.txt b/docs/requirements.txt
index d861119f..5a110042 100644
--- a/docs/requirements.txt
+++ b/docs/requirements.txt
@@ -2,7 +2,7 @@
 --index https://pypi.python.org/simple/
 
 # main
-mkdocs-material==9.4.7
+mkdocs-material==9.4.9
 
 # plugins
 mkdocs-exclude==1.0.2