diff --git a/less/qfq-bs.css.less b/less/qfq-bs.css.less
index 8b893fa29fac340fb68d26573127ef750c676c3c..2127191966c0df9f124b38487acbfada6cc4fcf7 100644
--- a/less/qfq-bs.css.less
+++ b/less/qfq-bs.css.less
@@ -1267,7 +1267,7 @@ thead.qfq-sticky td {
 }
 
 .dropdown-menu {
-  z-index: 920;
+  z-index: 991;
 }
 
 // No colorized badges in BS3: make our own