diff --git a/app/assets/stylesheets/common/components/banner.css.scss b/app/assets/stylesheets/common/components/banner.css.scss
index f423c7356d6..5ea03bd882a 100644
--- a/app/assets/stylesheets/common/components/banner.css.scss
+++ b/app/assets/stylesheets/common/components/banner.css.scss
@@ -8,7 +8,7 @@
   background: scale-color($tertiary, $lightness: 90%);
   box-shadow: 0 1px 2px scale-color($tertiary, $lightness: 70%);
   color: darken($tertiary, 45%);
-  z-index: 501;
+  z-index: 1001;
   overflow: auto;
 
   &.overlay {