diff --git a/tests/ClientTest.php b/tests/ClientTest.php
index 6544638..488bd6f 100644
--- a/tests/ClientTest.php
+++ b/tests/ClientTest.php
@@ -1,17 +1,14 @@
 <?php
 
-// Copyright (C) 2023 Ivan Stasiuk <ivan@stasi.uk>.
-//
-// This Source Code Form is subject to the terms of the Mozilla Public
-// License, v. 2.0. If a copy of the MPL was not distributed with this file,
-// You can obtain one at https://mozilla.org/MPL/2.0/.
+// Copyright (C) 2024 Ivan Stasiuk <ivan@stasi.uk>.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
 
 namespace BrokeYourBike\ZenithBankCIB\Tests;
 
 use GuzzleHttp\Client as GuzzleHttpClient;
 use BrokeYourBike\ZenithBankCIB\Interfaces\ConfigInterface;
 use BrokeYourBike\ZenithBankCIB\Client;
-use BrokeYourBike\HasSourceModel\HasSourceModelTrait;
 
 /**
  * @author Ivan Stasiuk <ivan@stasi.uk>
@@ -29,12 +26,4 @@ public function it_implemets_http_client_interface(): void
 
         $this->assertSame($mockedConfig, $api->getConfig());
     }
-
-    /** @test */
-    public function it_uses_has_source_model_trait(): void
-    {
-        $usedTraits = class_uses(Client::class);
-
-        $this->assertArrayHasKey(HasSourceModelTrait::class, $usedTraits);
-    }
 }