diff --git a/templates/base.html b/templates/base.html
index 9df73df..5a13f9e 100644
--- a/templates/base.html
+++ b/templates/base.html
@@ -116,7 +116,7 @@
   var PYGMENTS_STYLES = {{ pygments_styles|tojson }};
 </script>
 
-<body data-theme="{{ session.get('theme', 'light') }}" class="preload">
+<body data-theme="{{ session.get('theme', 'dark') }}" class="preload">
 
     <!-- Navbar Mejorada -->
     <nav class="navbar navbar-expand-lg navbar-dark bg-primary">
