diff --git a/core/include/update.inc.php b/core/include/update.inc.php
index 13b9e302..5c360349 100644
--- a/core/include/update.inc.php
+++ b/core/include/update.inc.php
@@ -888,6 +888,9 @@ if ($this->getData(['core', 'dataVersion']) < 11600) {
 	if (file_exists('core/vendor/i18n/translation.js')) {
 		unlink('core/vendor/i18n/translation.js');
 	}
+	// Langue de l'interface
+	$this->setData(['config', 'i18n', 'default', 'fr']);
+
 	// Mise à jour
 	$this->setData(['core', 'dataVersion', 11600]);
 }
diff --git a/core/module/install/ressource/defaultdata.php b/core/module/install/ressource/defaultdata.php
index 0e423290..d334ac4b 100644
--- a/core/module/install/ressource/defaultdata.php
+++ b/core/module/install/ressource/defaultdata.php
@@ -42,6 +42,7 @@ class init extends common {
 				'redirectLogin' => true
 			],
 			'i18n' => [
+				'default' => 'fr',
 				'fr'=> 'none',
 				'de'=> 'none',
 				'en'=> 'none',
@@ -52,7 +53,7 @@ class init extends common {
 			]
 		],
 		'core' => [
-			'dataVersion' => 11400,
+			'dataVersion' => 11600,
 			'lastBackup' => 0,
 			'lastClearTmp' => 0,
 			'lastAutoUpdate' => 0,