diff --git a/extra/twig-extra-bundle/DependencyInjection/Configuration.php b/extra/twig-extra-bundle/DependencyInjection/Configuration.php
index fc94eaca3..8b6f33c58 100644
--- a/extra/twig-extra-bundle/DependencyInjection/Configuration.php
+++ b/extra/twig-extra-bundle/DependencyInjection/Configuration.php
@@ -39,14 +39,14 @@ class Configuration implements ConfigurationInterface
     }
 
     /**
-     * Full configuration from {@link https://commonmark.thephpleague.com/2.3/configuration}.
+     * Full configuration from {@link https://commonmark.thephpleague.com/2.7/configuration}.
      */
     private function addCommonMarkConfiguration(ArrayNodeDefinition $rootNode): void
     {
         $rootNode
             ->children()
                 ->arrayNode('commonmark')
-                    ->ignoreExtraKeys()
+                    ->ignoreExtraKeys(false)
                     ->children()
                         ->arrayNode('renderer')
                             ->info('Array of options for rendering HTML.')
@@ -68,6 +68,10 @@ class Configuration implements ConfigurationInterface
                             ->info('The maximum nesting level for blocks.')
                             ->defaultValue(\PHP_INT_MAX)
                             ->end()
+                        ->integerNode('max_delimiters_per_line')
+                            ->info('The maximum number of strong/emphasis delimiters per line.')
+                            ->defaultValue(\PHP_INT_MAX)
+                            ->end()
                         ->arrayNode('slug_normalizer')
                             ->info('Array of options for configuring how URL-safe slugs are created.')
                             ->children()