diff --git a/src/Symfony/Component/Validator/Constraints/Collection/Optional.php b/src/Symfony/Component/Validator/Constraints/Collection/Optional.php
index f7a9204eb6..66463e55e4 100644
--- a/src/Symfony/Component/Validator/Constraints/Collection/Optional.php
+++ b/src/Symfony/Component/Validator/Constraints/Collection/Optional.php
@@ -11,6 +11,8 @@
 
 namespace Symfony\Component\Validator\Constraints\Collection;
 
+trigger_error('Symfony\Component\Validator\Constraints\Collection\Optional was deprecated in version 2.3 and will be removed in 3.0. You should use Symfony\Component\Validator\Constraints\Optional instead.', E_USER_DEPRECATED);
+
 use Symfony\Component\Validator\Constraints\Optional as BaseOptional;
 
 /**
diff --git a/src/Symfony/Component/Validator/Constraints/Collection/Required.php b/src/Symfony/Component/Validator/Constraints/Collection/Required.php
index e358343618..3a2e96d82a 100644
--- a/src/Symfony/Component/Validator/Constraints/Collection/Required.php
+++ b/src/Symfony/Component/Validator/Constraints/Collection/Required.php
@@ -11,6 +11,8 @@
 
 namespace Symfony\Component\Validator\Constraints\Collection;
 
+trigger_error('Symfony\Component\Validator\Constraints\Collection\Required was deprecated in version 2.3 and will be removed in 3.0. You should use Symfony\Component\Validator\Constraints\Required instead.', E_USER_DEPRECATED);
+
 use Symfony\Component\Validator\Constraints\Required as BaseRequired;
 
 /**