diff --git a/bootstrap_layouts.module b/bootstrap_layouts.module
index 6f0dba5..fa6d612 100644
--- a/bootstrap_layouts.module
+++ b/bootstrap_layouts.module
@@ -153,7 +153,9 @@ function _bootstrap_layouts_preprocess_layout(array &$variables) {
 
   // Create region variables based on the layout settings.
   foreach ($layout->getSetting('regions', []) as $region => $region_settings) {
-    $region_attributes = new Attribute(_bootstrap_layouts_parse_attributes($region_settings['attributes'], $tokens));
+    $merged_attributes = NestedArray::mergeDeep(_bootstrap_layouts_parse_attributes($region_settings['attributes'], $tokens), $variables['region_attributes'][$region]);
+    $region_attributes = new Attribute($merged_attributes);
+
     $region_attributes->addClass(array_keys($region_settings['classes']));
     if (!empty($region_settings['add_region_classes'])) {
       $region_attributes->addClass(['bs-region', Html::cleanCssIdentifier("bs-region--$region")]);