diff --git a/lib/livebook_web/live/modal_component.ex b/lib/livebook_web/live/modal_component.ex
index 0c28b9915..ca1a2089c 100644
--- a/lib/livebook_web/live/modal_component.ex
+++ b/lib/livebook_web/live/modal_component.ex
@@ -4,7 +4,7 @@ defmodule LivebookWeb.ModalComponent do
   @impl true
   def render(assigns) do
     ~L"""
-    <div class="fixed z-40 inset-0"
+    <div class="fixed z-[10000] inset-0"
       id="<%= @id %>">
 
       <!-- Modal container -->