diff --git a/docs/de/schema.core.rst b/docs/de/schema.core.rst
index 17b56f4..0358e4c 100644
--- a/docs/de/schema.core.rst
+++ b/docs/de/schema.core.rst
@@ -209,8 +209,8 @@ building catalogs of open software.
 The controlled vocabulary :ref:`categories-list` contains the list of allowed
 values.
 
-Key ``usedBy``
-~~~~~~~~~~~~~~
+Key ``usedBy`` (*deprecated*)
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 
 -  Type: array of strings
 -  Presence: optional
diff --git a/docs/fr/schema.core.rst b/docs/fr/schema.core.rst
index c38fc17..1248a20 100644
--- a/docs/fr/schema.core.rst
+++ b/docs/fr/schema.core.rst
@@ -216,8 +216,8 @@ et aider à la constitution d'un catalogue des logiciels ouverts.
 Le vocabulaire contrôlé de la :ref:`categories-list` présente la liste
 des valeurs acceptées.
 
-Clé ``usedBy``
-~~~~~~~~~~~~~~
+Clé ``usedBy`` (*deprecated*)
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 
 -  Type: array de chaînes de caractères
 -  Présence: facultative
diff --git a/docs/it/schema.core.rst b/docs/it/schema.core.rst
index 7f42006..749baf1 100644
--- a/docs/it/schema.core.rst
+++ b/docs/it/schema.core.rst
@@ -223,8 +223,8 @@ e possono aiutare a costruire il catalogo di software open.
 Il vocabolario controllato :ref:`categories-list` presenta la lista dei valori
 accettabili. 
 
-Chiave ``usedBy``
-~~~~~~~~~~~~~~~~~
+Chiave ``usedBy`` (*deprecated*)
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 
 -  Tipo: array di stringhe
 -  Presenza: opzionale
diff --git a/docs/standard/schema.core.rst b/docs/standard/schema.core.rst
index e60d6c1..10d11bc 100644
--- a/docs/standard/schema.core.rst
+++ b/docs/standard/schema.core.rst
@@ -212,8 +212,8 @@ building catalogs of open software.
 The controlled vocabulary :ref:`categories-list` contains the list of allowed
 values.
 
-Key ``usedBy``
-~~~~~~~~~~~~~~
+Key ``usedBy`` (*deprecated*)
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 
 -  Type: array of strings
 -  Presence: optional