diff --git a/reference/configuration/framework.rst b/reference/configuration/framework.rst
index 12c2d4bfe19..36b25ef35af 100644
--- a/reference/configuration/framework.rst
+++ b/reference/configuration/framework.rst
@@ -128,6 +128,7 @@ Configuration
         * :ref:`name <reference-cache-pools-name>`
             * `adapter`_
             * `public`_
+            * `tags`_
             * `default_lifetime`_
             * `provider`_
             * `clearer`_
@@ -1873,6 +1874,17 @@ public
 
 Whether your service should be public or not.
 
+tags
+""""
+
+**type**: ``boolean`` | ``string`` **default**: ``null``
+
+.. versionadded:: 4.2
+    The ``tags`` option was introduced in Symfony 4.2.
+
+Whether your service should be able to handle tags or not.
+Can also be the service id of another cache pool where tags will be stored.
+
 default_lifetime
 """"""""""""""""