diff --git a/src/Symfony/Bridge/Doctrine/CHANGELOG.md b/src/Symfony/Bridge/Doctrine/CHANGELOG.md
index ea6918de35..af0b9366a1 100644
--- a/src/Symfony/Bridge/Doctrine/CHANGELOG.md
+++ b/src/Symfony/Bridge/Doctrine/CHANGELOG.md
@@ -5,7 +5,7 @@ CHANGELOG
 -----
 
  * added support for symfony/uid as `UlidType` and `UuidType` as Doctrine types
- * added `UlidGenerator`, `UUidV1Generator`, `UuidV4Generator` and `UuidV6Generator`
+ * added `UlidGenerator`, `UuidV1Generator`, `UuidV4Generator` and `UuidV6Generator`
 
 5.0.0
 -----
diff --git a/src/Symfony/Bridge/Doctrine/IdGenerator/UlidGenerator.php b/src/Symfony/Bridge/Doctrine/IdGenerator/UlidGenerator.php
index 8953038860..364bf3b3ac 100644
--- a/src/Symfony/Bridge/Doctrine/IdGenerator/UlidGenerator.php
+++ b/src/Symfony/Bridge/Doctrine/IdGenerator/UlidGenerator.php
@@ -15,6 +15,9 @@ use Doctrine\ORM\EntityManager;
 use Doctrine\ORM\Id\AbstractIdGenerator;
 use Symfony\Component\Uid\Ulid;
 
+/**
+ * @experimental in 5.2
+ */
 final class UlidGenerator extends AbstractIdGenerator
 {
     public function generate(EntityManager $em, $entity): Ulid
diff --git a/src/Symfony/Bridge/Doctrine/IdGenerator/UuidV1Generator.php b/src/Symfony/Bridge/Doctrine/IdGenerator/UuidV1Generator.php
index 21d2fd6c19..55f6eb1eb2 100644
--- a/src/Symfony/Bridge/Doctrine/IdGenerator/UuidV1Generator.php
+++ b/src/Symfony/Bridge/Doctrine/IdGenerator/UuidV1Generator.php
@@ -15,6 +15,9 @@ use Doctrine\ORM\EntityManager;
 use Doctrine\ORM\Id\AbstractIdGenerator;
 use Symfony\Component\Uid\UuidV1;
 
+/**
+ * @experimental in 5.2
+ */
 final class UuidV1Generator extends AbstractIdGenerator
 {
     public function generate(EntityManager $em, $entity): UuidV1
diff --git a/src/Symfony/Bridge/Doctrine/IdGenerator/UuidV4Generator.php b/src/Symfony/Bridge/Doctrine/IdGenerator/UuidV4Generator.php
index 35b94a7cd0..8731daa641 100644
--- a/src/Symfony/Bridge/Doctrine/IdGenerator/UuidV4Generator.php
+++ b/src/Symfony/Bridge/Doctrine/IdGenerator/UuidV4Generator.php
@@ -15,6 +15,9 @@ use Doctrine\ORM\EntityManager;
 use Doctrine\ORM\Id\AbstractIdGenerator;
 use Symfony\Component\Uid\UuidV4;
 
+/**
+ * @experimental in 5.2
+ */
 final class UuidV4Generator extends AbstractIdGenerator
 {
     public function generate(EntityManager $em, $entity): UuidV4
diff --git a/src/Symfony/Bridge/Doctrine/IdGenerator/UuidV6Generator.php b/src/Symfony/Bridge/Doctrine/IdGenerator/UuidV6Generator.php
index 3677af1c2d..cdcd908e93 100644
--- a/src/Symfony/Bridge/Doctrine/IdGenerator/UuidV6Generator.php
+++ b/src/Symfony/Bridge/Doctrine/IdGenerator/UuidV6Generator.php
@@ -15,6 +15,9 @@ use Doctrine\ORM\EntityManager;
 use Doctrine\ORM\Id\AbstractIdGenerator;
 use Symfony\Component\Uid\UuidV6;
 
+/**
+ * @experimental in 5.2
+ */
 final class UuidV6Generator extends AbstractIdGenerator
 {
     public function generate(EntityManager $em, $entity): UuidV6