diff --git a/src/Article.php b/src/Article.php
index <HASH>..<HASH> 100644
--- a/src/Article.php
+++ b/src/Article.php
@@ -50,7 +50,7 @@ class Article
      */
     public function post()
     {
-        return strtoupper($this->title) . "\n\n" . $this->body;
+        return mb_strtoupper($this->title) . "\n\n" . $this->body;
     }
 
     /**
diff --git a/src/Converters/ListItemConverter.php b/src/Converters/ListItemConverter.php
index <HASH>..<HASH> 100644
--- a/src/Converters/ListItemConverter.php
+++ b/src/Converters/ListItemConverter.php
@@ -28,6 +28,7 @@ class ListItemConverter implements ConverterInterface
         $level = $element->getListItemLevel($element);
 
         $prefixForParagraph = str_repeat('  ', $level + 1);
+
         $value = trim(implode("\n" . $prefixForParagraph, explode("\n", trim($element->getValue()))));
 
         // If list item is the first in a nested list, add a newline before it
Update Article and ListItemConverter