diff --git a/docs/.vitepress/vitepress/styles/css-vars.scss b/docs/.vitepress/vitepress/styles/css-vars.scss
index f4843e19c1..67bbe9c926 100644
--- a/docs/.vitepress/vitepress/styles/css-vars.scss
+++ b/docs/.vitepress/vitepress/styles/css-vars.scss
@@ -57,7 +57,7 @@
   --content-min-width: 16rem;
   --content-max-width: 48rem;
 
-  --nav-z-index: 11;
+  --nav-z-index: 12;
   --sub-nav-z-index: 11;
   --sidebar-z-index: 40;
   --overlay-z-index: 30;