diff --git a/src/Symfony/Bundle/SecurityBundle/DependencyInjection/MainConfiguration.php b/src/Symfony/Bundle/SecurityBundle/DependencyInjection/MainConfiguration.php
index da32eaf7be..15ff8246f7 100644
--- a/src/Symfony/Bundle/SecurityBundle/DependencyInjection/MainConfiguration.php
+++ b/src/Symfony/Bundle/SecurityBundle/DependencyInjection/MainConfiguration.php
@@ -206,7 +206,7 @@ class MainConfiguration implements ConfigurationInterface
                     ->scalarNode('csrf_token_id')->defaultValue('logout')->end()
                     ->scalarNode('path')->defaultValue('/logout')->end()
                     ->scalarNode('target')->defaultValue('/')->end()
-                    ->scalarNode('success_handler')->setDeprecated(sprintf('The "%%node%%" at path "%%path%%" is deprecated, register a listener on the "%s" event instead.', LogoutEvent::class))->end()
+                    ->scalarNode('success_handler')->setDeprecated('symfony/security-bundle', '5.1', sprintf('The "%%node%%" at path "%%path%%" is deprecated, register a listener on the "%s" event instead.', LogoutEvent::class))->end()
                     ->booleanNode('invalidate_session')->defaultTrue()->end()
                 ->end()
                 ->fixXmlConfig('delete_cookie')
@@ -231,7 +231,7 @@ class MainConfiguration implements ConfigurationInterface
                 ->fixXmlConfig('handler')
                 ->children()
                     ->arrayNode('handlers')
-                        ->prototype('scalar')->setDeprecated(sprintf('The "%%node%%" at path "%%path%%" is deprecated, register a listener on the "%s" event instead.', LogoutEvent::class))->end()
+                        ->prototype('scalar')->setDeprecated('symfony/security-bundle', '5.1', sprintf('The "%%node%%" at path "%%path%%" is deprecated, register a listener on the "%s" event instead.', LogoutEvent::class))->end()
                     ->end()
                 ->end()
             ->end()
diff --git a/src/Symfony/Component/Security/Http/composer.json b/src/Symfony/Component/Security/Http/composer.json
index cbd03d5781..a494b04e00 100644
--- a/src/Symfony/Component/Security/Http/composer.json
+++ b/src/Symfony/Component/Security/Http/composer.json
@@ -17,6 +17,7 @@
     ],
     "require": {
         "php": "^7.2.5",
+        "symfony/deprecation-contracts": "^2.1",
         "symfony/security-core": "^4.4.7|^5.0.7",
         "symfony/http-foundation": "^4.4.7|^5.0.7",
         "symfony/http-kernel": "^4.4|^5.0",