diff --git a/src/API/HTTPAdapter/CurlHTTPAdapter.php b/src/API/HTTPAdapter/CurlHTTPAdapter.php
index 0958ac9..72af0f2 100644
--- a/src/API/HTTPAdapter/CurlHTTPAdapter.php
+++ b/src/API/HTTPAdapter/CurlHTTPAdapter.php
@@ -74,6 +74,6 @@ public function request(string $method, string $endpoint, array $params = [], ar
 
         $responseBody = json_decode((string)$response, true);
 
-        return new Response($statusCode, !is_array($responseBody) ? $responseBody : []);
+        return new Response($statusCode, is_array($responseBody) ? $responseBody : []);
     }
 }
diff --git a/src/API/HTTPAdapter/Guzzle67HTTPAdapter.php b/src/API/HTTPAdapter/Guzzle67HTTPAdapter.php
index 0c0475e..705d2f7 100644
--- a/src/API/HTTPAdapter/Guzzle67HTTPAdapter.php
+++ b/src/API/HTTPAdapter/Guzzle67HTTPAdapter.php
@@ -39,7 +39,7 @@ public function request(string $method, string $endpoint, array $params = [], ar
 
         $responseBody = json_decode((string)$response->getBody(), true);
 
-        return new Response($response->getStatusCode(), !is_array($responseBody) ? $responseBody : []);
+        return new Response($response->getStatusCode(), is_array($responseBody) ? $responseBody : []);
     }
 
     private function assertSuccessResponsePayload(ResponseInterface $response): void