diff --git a/_external/resources/wai-intro-wcag b/_external/resources/wai-intro-wcag
index 517cc72a93e..be91e0f2c0f 160000
--- a/_external/resources/wai-intro-wcag
+++ b/_external/resources/wai-intro-wcag
@@ -1 +1 @@
-Subproject commit 517cc72a93eaa519e167d4aef8cc948cf75a286f
+Subproject commit be91e0f2c0ff5eff5c02c86042f8b89d443a1ead