diff --git a/src/Symfony/Component/Validator/CHANGELOG.md b/src/Symfony/Component/Validator/CHANGELOG.md
index b77219de92..043f310f35 100644
--- a/src/Symfony/Component/Validator/CHANGELOG.md
+++ b/src/Symfony/Component/Validator/CHANGELOG.md
@@ -31,6 +31,7 @@ CHANGELOG
    ```
  * added the `Isin` constraint and validator
  * added the `ULID` constraint and validator
+ * added support for UUIDv6 in `Uuid` constraint
 
 5.1.0
 -----
diff --git a/src/Symfony/Component/Validator/Constraints/Uuid.php b/src/Symfony/Component/Validator/Constraints/Uuid.php
index 80cbf609e5..e43b04e4a5 100644
--- a/src/Symfony/Component/Validator/Constraints/Uuid.php
+++ b/src/Symfony/Component/Validator/Constraints/Uuid.php
@@ -44,6 +44,7 @@ class Uuid extends Constraint
     const V3_MD5 = 3;
     const V4_RANDOM = 4;
     const V5_SHA1 = 5;
+    const V6_SORTABLE = 6;
 
     /**
      * Message to display when validation fails.
@@ -74,6 +75,7 @@ class Uuid extends Constraint
         self::V3_MD5,
         self::V4_RANDOM,
         self::V5_SHA1,
+        self::V6_SORTABLE,
     ];
 
     public $normalizer;
diff --git a/src/Symfony/Component/Validator/Constraints/UuidValidator.php b/src/Symfony/Component/Validator/Constraints/UuidValidator.php
index 49bdf8765a..f3acc86122 100644
--- a/src/Symfony/Component/Validator/Constraints/UuidValidator.php
+++ b/src/Symfony/Component/Validator/Constraints/UuidValidator.php
@@ -22,14 +22,11 @@ use Symfony\Component\Validator\Exception\UnexpectedValueException;
  * Strict validation will allow a UUID as specified per RFC 4122.
  * Loose validation will allow any type of UUID.
  *
- * For better compatibility, both loose and strict, you should consider using a specialized UUID library like "ramsey/uuid" instead.
- *
  * @author Colin O'Dell <colinodell@gmail.com>
  * @author Bernhard Schussek <bschussek@gmail.com>
  *
  * @see http://tools.ietf.org/html/rfc4122
  * @see https://en.wikipedia.org/wiki/Universally_unique_identifier
- * @see https://github.com/ramsey/uuid
  */
 class UuidValidator extends ConstraintValidator
 {
@@ -38,7 +35,7 @@ class UuidValidator extends ConstraintValidator
 
     // Roughly speaking:
     // x = any hexadecimal character
-    // M = any allowed version {1..5}
+    // M = any allowed version {1..6}
     // N = any allowed variant {8, 9, a, b}
 
     const STRICT_LENGTH = 36;
diff --git a/src/Symfony/Component/Validator/Tests/Constraints/UuidValidatorTest.php b/src/Symfony/Component/Validator/Tests/Constraints/UuidValidatorTest.php
index b6d5fb3dba..e9d1575b8b 100644
--- a/src/Symfony/Component/Validator/Tests/Constraints/UuidValidatorTest.php
+++ b/src/Symfony/Component/Validator/Tests/Constraints/UuidValidatorTest.php
@@ -78,6 +78,7 @@ class UuidValidatorTest extends ConstraintValidatorTestCase
             ['456daefb-5aa6-41b5-8dbc-068b05a8b201'], // Version 4 UUID in lowercase
             ['456daEFb-5AA6-41B5-8DBC-068B05A8B201'], // Version 4 UUID in mixed case
             ['456daEFb-5AA6-41B5-8DBC-068B05A8B201', [Uuid::V4_RANDOM]],
+            ['1eb01932-4c0b-6570-aa34-d179cdf481ae', [Uuid::V6_SORTABLE]],
         ];
     }
 
@@ -145,7 +146,6 @@ class UuidValidatorTest extends ConstraintValidatorTestCase
             ['216fff40-98d9-11e3-a5e2-0800200c9a6', Uuid::TOO_SHORT_ERROR],
             ['216fff40-98d9-11e3-a5e2-0800200c9a666', Uuid::TOO_LONG_ERROR],
             ['216fff40-98d9-01e3-a5e2-0800200c9a66', Uuid::INVALID_VERSION_ERROR],
-            ['216fff40-98d9-61e3-a5e2-0800200c9a66', Uuid::INVALID_VERSION_ERROR],
             ['216fff40-98d9-71e3-a5e2-0800200c9a66', Uuid::INVALID_VERSION_ERROR],
             ['216fff40-98d9-81e3-a5e2-0800200c9a66', Uuid::INVALID_VERSION_ERROR],
             ['216fff40-98d9-91e3-a5e2-0800200c9a66', Uuid::INVALID_VERSION_ERROR],