diff --git a/tests/Integration/HttpTest.php b/tests/Integration/HttpTest.php
index 7bd1bb8..31c041b 100644
--- a/tests/Integration/HttpTest.php
+++ b/tests/Integration/HttpTest.php
@@ -155,7 +155,7 @@
     $clientHandler = new ClientHandler();
     $clientHandler->setSyncClient($mockClient);
 
-    $response = $clientHandler->withBody(json_encode(['name' => 'John']))
+    $response = $clientHandler->withBody(['name' => 'John'])
         ->post('https://example.com/users');
 
     expect($response->getStatusCode())->toBe(201);
diff --git a/tests/Unit/ClientHandlerTest.php b/tests/Unit/ClientHandlerTest.php
index 1b5d909..782c26b 100644
--- a/tests/Unit/ClientHandlerTest.php
+++ b/tests/Unit/ClientHandlerTest.php
@@ -200,7 +200,7 @@
     $clientHandler = new ClientHandler();
     $clientHandler->setSyncClient($mockClient);
 
-    $response = $clientHandler->withBody(json_encode(['name' => 'John']))
+    $response = $clientHandler->withBody(['name' => 'John'])
         ->post('https://example.com/users');
 
     expect($response->getStatusCode())->toBe(201);