diff --git a/src/Symfony/Bundle/FrameworkBundle/DependencyInjection/Configuration.php b/src/Symfony/Bundle/FrameworkBundle/DependencyInjection/Configuration.php
index 44bbe6718b2c7..aef052eab24b2 100644
--- a/src/Symfony/Bundle/FrameworkBundle/DependencyInjection/Configuration.php
+++ b/src/Symfony/Bundle/FrameworkBundle/DependencyInjection/Configuration.php
@@ -673,7 +673,7 @@ private function addSessionSection(ArrayNodeDefinition $rootNode): void
                         ->enumNode('cookie_samesite')->values([null, Cookie::SAMESITE_LAX, Cookie::SAMESITE_STRICT, Cookie::SAMESITE_NONE])->defaultValue('lax')->end()
                         ->booleanNode('use_cookies')->end()
                         ->scalarNode('gc_divisor')->end()
-                        ->scalarNode('gc_probability')->defaultValue(1)->end()
+                        ->scalarNode('gc_probability')->end()
                         ->scalarNode('gc_maxlifetime')->end()
                         ->scalarNode('save_path')
                             ->info('Defaults to "%kernel.cache_dir%/sessions" if the "handler_id" option is not null')
diff --git a/src/Symfony/Bundle/FrameworkBundle/Tests/DependencyInjection/ConfigurationTest.php b/src/Symfony/Bundle/FrameworkBundle/Tests/DependencyInjection/ConfigurationTest.php
index 820f4bf11be85..c4c81538c61ad 100644
--- a/src/Symfony/Bundle/FrameworkBundle/Tests/DependencyInjection/ConfigurationTest.php
+++ b/src/Symfony/Bundle/FrameworkBundle/Tests/DependencyInjection/ConfigurationTest.php
@@ -814,7 +814,6 @@ protected static function getBundleDefaultConfig()
                 'cookie_httponly' => true,
                 'cookie_samesite' => 'lax',
                 'cookie_secure' => 'auto',
-                'gc_probability' => 1,
                 'metadata_update_threshold' => 0,
             ],
             'request' => [