diff --git a/requirements.txt b/requirements.txt
index 2e3ea77..69edf35 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -10,4 +10,4 @@ mkdocs-git-revision-date-localized-plugin>=1.2.0
 mkdocs-awesome-pages-plugin>=2.9.0
 
 # Extensions
-pymdown-extensions>=10.12
+pymdown-extensions>=10.21.2