diff --git a/_external/aria-practices b/_external/aria-practices
index 4a3531f05..d05779184 160000
--- a/_external/aria-practices
+++ b/_external/aria-practices
@@ -1 +1 @@
-Subproject commit 4a3531f056b6f6ea322b58243f82b12def1b67cc
+Subproject commit d05779184457932110f567d8aeb0f1645917e098
diff --git a/content-assets/wai-aria-practices/patterns/dialog-modal/examples/css/dialog.css b/content-assets/wai-aria-practices/patterns/dialog-modal/examples/css/dialog.css
index 0bf4286f8..b5132a16a 100644
--- a/content-assets/wai-aria-practices/patterns/dialog-modal/examples/css/dialog.css
+++ b/content-assets/wai-aria-practices/patterns/dialog-modal/examples/css/dialog.css
@@ -113,6 +113,7 @@
   right: 0;
   bottom: 0;
   left: 0;
+  z-index: 1;
 }
 
 @media screen and (min-width: 640px) {