diff --git a/composer.json b/composer.json
index d13db5bd0539..94d9fe4aad7e 100644
--- a/composer.json
+++ b/composer.json
@@ -22,7 +22,7 @@
         "doctrine/inflector": "^2.0",
         "dragonmantank/cron-expression": "^3.1",
         "egulias/email-validator": "^3.1",
-        "league/commonmark": "^1.3",
+        "league/commonmark": "^2.0",
         "league/flysystem": "^2.0",
         "monolog/monolog": "^2.0",
         "nesbot/carbon": "^2.31",
diff --git a/src/Illuminate/Mail/Markdown.php b/src/Illuminate/Mail/Markdown.php
index 9a1706d383b1..e5cf7b30ae6c 100644
--- a/src/Illuminate/Mail/Markdown.php
+++ b/src/Illuminate/Mail/Markdown.php
@@ -5,9 +5,10 @@
 use Illuminate\Contracts\View\Factory as ViewFactory;
 use Illuminate\Support\HtmlString;
 use Illuminate\Support\Str;
-use League\CommonMark\CommonMarkConverter;
-use League\CommonMark\Environment;
+use League\CommonMark\Environment\Environment;
+use League\CommonMark\Extension\CommonMark\CommonMarkCoreExtension;
 use League\CommonMark\Extension\Table\TableExtension;
+use League\CommonMark\MarkdownConverter;
 use TijsVerkoyen\CssToInlineStyles\CssToInlineStyles;
 
 class Markdown
@@ -104,15 +105,16 @@ public function renderText($view, array $data = [])
      */
     public static function parse($text)
     {
-        $environment = Environment::createCommonMarkEnvironment();
+        $environment = new Environment([
+            'allow_unsafe_links' => false,
+        ]);
 
+        $environment->addExtension(new CommonMarkCoreExtension);
         $environment->addExtension(new TableExtension);
 
-        $converter = new CommonMarkConverter([
-            'allow_unsafe_links' => false,
-        ], $environment);
+        $converter = new MarkdownConverter($environment);
 
-        return new HtmlString($converter->convertToHtml($text));
+        return new HtmlString($converter->convertToHtml($text)->getContent());
     }
 
     /**
diff --git a/src/Illuminate/Support/Str.php b/src/Illuminate/Support/Str.php
index 227d82f0da01..39eb08bf3217 100644
--- a/src/Illuminate/Support/Str.php
+++ b/src/Illuminate/Support/Str.php
@@ -3,7 +3,10 @@
 namespace Illuminate\Support;
 
 use Illuminate\Support\Traits\Macroable;
-use League\CommonMark\GithubFlavoredMarkdownConverter;
+use League\CommonMark\Environment\Environment;
+use League\CommonMark\Extension\CommonMark\CommonMarkCoreExtension;
+use League\CommonMark\Extension\GithubFlavoredMarkdownExtension;
+use League\CommonMark\MarkdownConverter;
 use Ramsey\Uuid\Codec\TimestampFirstCombCodec;
 use Ramsey\Uuid\Generator\CombGenerator;
 use Ramsey\Uuid\Uuid;
@@ -401,9 +404,13 @@ public static function words($value, $words = 100, $end = '...')
      */
     public static function markdown($string, array $options = [])
     {
-        $converter = new GithubFlavoredMarkdownConverter($options);
+        $environment = new Environment($options);
+        $environment->addExtension(new CommonMarkCoreExtension());
+        $environment->addExtension(new GithubFlavoredMarkdownExtension());
 
-        return $converter->convertToHtml($string);
+        $converter = new MarkdownConverter($environment);
+
+        return $converter->convertToHtml($string)->getContent();
     }
 
     /**