diff --git a/core/themes/claro/css/components/jquery.ui/theme.css b/core/themes/claro/css/components/jquery.ui/theme.css
index 630fef8..ed920bc 100644
--- a/core/themes/claro/css/components/jquery.ui/theme.css
+++ b/core/themes/claro/css/components/jquery.ui/theme.css
@@ -946,7 +946,7 @@
   border-radius: 0 0 var(--input-border-radius-size) var(--input-border-radius-size);
   background: var(--jui-dropdown-bg-color);
   box-shadow: 0 0.125rem 0.25rem var(--jui-dropdown-shadow-color);
-  z-index: 1000;
+  z-index: 500;
 }
 
 /* Suggestion list */