diff --git a/migrations/Version20210519132610.php b/migrations/Version20210519132610.php
index 1ad66ef..a07992a 100644
--- a/migrations/Version20210519132610.php
+++ b/migrations/Version20210519132610.php
@@ -14,13 +14,11 @@ final class Version20210519132610 extends AbstractMigration
 {
     public function up(Schema $schema): void
     {
-        $localDefault = \Locale::getDefault();
-
         $this->abortIf('mysql' !== $this->connection->getDatabasePlatform()->getName(), 'Migration can only be executed safely on \'mysql\'.');
 
         $this->addSql('ALTER TABLE contributor ADD locale VARCHAR(255) DEFAULT NULL');
         $this->addSql('ALTER TABLE notice ADD locale VARCHAR(255) DEFAULT NULL');
-        $this->addSql("UPDATE contributor SET locale = '{$localDefault}' WHERE locale is NULL");
+        $this->addSql("UPDATE contributor SET locale = 'fr' WHERE locale is NULL");
     }
 
     public function down(Schema $schema): void