diff --git a/src/layouts/Header.less b/src/layouts/Header.less
index 59b8befd..8f5fcb9e 100644
--- a/src/layouts/Header.less
+++ b/src/layouts/Header.less
@@ -2,7 +2,6 @@
   position: fixed;
   top: 0;
   width: 100%;
-  // > @zindex-tooltip
-  z-index: 1061;
+  z-index: 9;
   transition: width 0.2s;
 }