diff --git a/base/medias.php b/base/medias.php
index 73d508ca4698e394b870b7df0567a76361fbbd83..8ac1626d9e2a9ac07e738ff3f322e88430dbc0cc 100644
--- a/base/medias.php
+++ b/base/medias.php
@@ -152,7 +152,7 @@ function medias_declarer_tables_objets_sql($tables) {
 			'mode' => "varchar(10) DEFAULT 'document' NOT NULL",
 			'distant' => "VARCHAR(3) DEFAULT 'non'",
 			'statut' => "varchar(10) DEFAULT '0' NOT NULL",
-			'credits' => "varchar(255) DEFAULT '' NOT NULL",
+			'credits' => "text DEFAULT '' NOT NULL",
 			'date_publication' => "datetime DEFAULT '0000-00-00 00:00:00' NOT NULL",
 			'brise' => 'tinyint DEFAULT 0',
 			'maj' => 'TIMESTAMP'
diff --git a/medias_administrations.php b/medias_administrations.php
index 1979fc9fba19862264fffe8f8f767e6c5f7da671..777803e6c81c5f126c2a8db322b5ecf3a912b034 100644
--- a/medias_administrations.php
+++ b/medias_administrations.php
@@ -173,6 +173,10 @@ function medias_upgrade($nom_meta_base_version, $version_cible) {
 		// ajout de rang_lien
 		array('maj_tables', 'spip_documents_liens'),
 	);
+	$maj['1.3.1'] = array(
+		// plus de place dans les crédits
+		array('sql_alter', "TABLE spip_documents CHANGE credits credits text DEFAULT '' NOT NULL"),
+	);
 	include_spip('base/upgrade');
 	include_spip('base/medias');
 	maj_plugin($nom_meta_base_version, $version_cible, $maj);
diff --git a/paquet.xml b/paquet.xml
index e9401b33e00bc5b4f070f6a87fa24dbe5cd8537d..dbdabd0460961b5a1fb340909042cc575de8e1f5 100644
--- a/paquet.xml
+++ b/paquet.xml
@@ -1,11 +1,11 @@
 <paquet
 	prefix="medias"
 	categorie="multimedia"
-	version="2.18.13"
+	version="2.18.14"
 	etat="stable"
 	compatibilite="[3.2.0-dev;3.2.*]"
 	logo="prive/themes/spip/images/portfolio-32.png"
-	schema="1.3.0"
+	schema="1.3.1"
 >
 
 	<nom>Medias</nom>