diff --git a/docs/requirements.txt b/docs/requirements.txt
index c5ffeb6..7c3c450 100644
--- a/docs/requirements.txt
+++ b/docs/requirements.txt
@@ -1,3 +1,3 @@
 mkdocs==1.6.1
 mkdocs-material==9.5.34
-pymdown-extensions==10.16.1
+pymdown-extensions==10.21.3