diff --git a/docs/guidelines/A11y.md b/docs/guidelines/A11y.md
index 84b95e448..9b8a33098 100644
--- a/docs/guidelines/A11y.md
+++ b/docs/guidelines/A11y.md
@@ -45,3 +45,4 @@
 -   https://www.a11yproject.com/checklist/
 -   https://moritzgiessmann.de/accessibility-cheatsheet/
 -   https://wcag.com/developers/
+-   https://www.w3.org/WAI/ARIA/apg/