1 files changed, 2 insertions, 2 deletions
diff --git a/app/Factories/MarkdownFactory.php b/app/Factories/MarkdownFactory.php
index 09df669976..57d51f78ce 100644
--- a/app/Factories/MarkdownFactory.php
+++ b/app/Factories/MarkdownFactory.php
@@ -83,7 +83,7 @@ class MarkdownFactory implements MarkdownFactoryInterface
      *
      * @return string
      */
-    public function autolink(string $markdown, Tree $tree = null): string
+    public function autolink(string $markdown, Tree|null $tree = null): string
     {
         // Create a minimal commonmark processor - just add support for auto-links.
         $environment = new Environment(static::CONFIG_AUTOLINK);
@@ -117,7 +117,7 @@ class MarkdownFactory implements MarkdownFactoryInterface
      *
      * @return string
      */
-    public function markdown(string $markdown, Tree $tree = null): string
+    public function markdown(string $markdown, Tree|null $tree = null): string
     {
         $environment = new Environment(static::CONFIG_MARKDOWN);
         $environment->addExtension(new CommonMarkCoreExtension());