diff --git a/requirements.txt b/requirements.txt
index 4bd803c..d2e2aad 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -10,6 +10,6 @@ mkdocs-material-extensions == 1.3.1
 mkdocs-minify-plugin == 0.8.0
 pip-audit == 2.10.0
 Pygments == 2.19.2
-pymdown-extensions == 10.20.1
+pymdown-extensions == 10.21
 PyOpenSSL == 25.3.0
 yamllint == 1.38.0