diff --git a/src/Nodes/CodeBlockShiki.php b/src/Nodes/CodeBlockShiki.php
index e69e5cd6..bcb5201c 100644
--- a/src/Nodes/CodeBlockShiki.php
+++ b/src/Nodes/CodeBlockShiki.php
@@ -46,7 +46,7 @@ public function renderHTML($node, $HTMLAttributes = [])
         }
 
         try {
-            $content = Shiki::highlight($code, $language, 'nord');
+            $content = Shiki::highlight($code, $language, $this->options['theme']);
         } catch (DomainException $exception) {
             $mergedAttributes = HTML::mergeAttributes(
                 $this->options['HTMLAttributes'],