diff --git a/themes/atom-light-ui/lists.less b/themes/atom-light-ui/lists.less
index 36ae64a6f..35225bc9e 100644
--- a/themes/atom-light-ui/lists.less
+++ b/themes/atom-light-ui/lists.less
@@ -94,7 +94,7 @@
 
 .select-list.popover-list {
   background-color: @overlay-background-color;
-  -webkit-box-shadow: 0 0 3px 3px @base-border-color;
+  box-shadow: 0 0 10px @base-border-color;
   padding: @component-padding/2;
   border-radius: @component-border-radius;
   border: 1px solid @overlay-border-color;