diff --git a/wp-admin/css/wp-admin.css b/wp-admin/css/wp-admin.css
index 45ee5e1830..919a3229fb 100644
--- a/wp-admin/css/wp-admin.css
+++ b/wp-admin/css/wp-admin.css
@@ -1370,7 +1370,7 @@ form.upgrade .hint {
 	position: absolute;
 	top: -1000em;
 	left: 146px;
-	z-index: 10000;
+	z-index: 1000;
 	overflow: visible;
 	border-width: 1px;
 	border-style: solid;
@@ -8270,4 +8270,4 @@ a.widget-control-edit {
 .update-php .spinner {
 	float: none;
 	margin: -4px 0;
-}
\ No newline at end of file
+}