diff --git a/src/Entity/Configuration.php b/src/Entity/Configuration.php
index 2d46a279..4fb06685 100644
--- a/src/Entity/Configuration.php
+++ b/src/Entity/Configuration.php
@@ -43,8 +43,7 @@ class Configuration
     /**
      * @var string|null
      *
-     * @ORM\Column(name="value", type="string", length=1024, nullable=true)
-     * @Assert\Length(max=1024, allowEmptyString=true)
+     * @ORM\Column(name="value", type="text", nullable=true)
      */
     private $value;
 
diff --git a/src/Migrations/Version20220404150236.php b/src/Migrations/Version20220404150236.php
new file mode 100644
index 00000000..42815744
--- /dev/null
+++ b/src/Migrations/Version20220404150236.php
@@ -0,0 +1,40 @@
+<?php
+
+declare(strict_types=1);
+
+/*
+ * This file is part of the Kimai time-tracking app.
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace DoctrineMigrations;
+
+use App\Doctrine\AbstractMigration;
+use Doctrine\DBAL\Schema\Schema;
+use Doctrine\DBAL\Types\Type;
+use Doctrine\DBAL\Types\Types;
+
+/**
+ * @version 1.19.2
+ */
+final class Version20220404150236 extends AbstractMigration
+{
+    public function getDescription(): string
+    {
+        return 'Allow arbitrary string length for system configurations';
+    }
+
+    public function up(Schema $schema): void
+    {
+        $configuration = $schema->getTable('kimai2_configuration');
+        $configuration->getColumn('value')->setType(Type::getType(Types::TEXT));
+    }
+
+    public function down(Schema $schema): void
+    {
+        $configuration = $schema->getTable('kimai2_configuration');
+        $configuration->getColumn('value')->setLength(1024)->setType(Type::getType(Types::STRING));
+    }
+}