diff --git a/lib/CaseConverter.php b/lib/CaseConverter.php
index e233520..adad2c7 100644
--- a/lib/CaseConverter.php
+++ b/lib/CaseConverter.php
@@ -4,8 +4,6 @@
 
 trait CaseConverter
 {
-    use CaseConverter;
-
     /**
      * @param string $sentence
      * @return string
diff --git a/lib/Client.php b/lib/Client.php
index bc73437..f23b944 100644
--- a/lib/Client.php
+++ b/lib/Client.php
@@ -80,15 +80,6 @@ public function send(RequestInterface $apiRequest)
      */
     private function buildRequest($apiRequest)
     {
-        if (class_exists('\\GuzzleHttp\\Psr7\\Request')) {
-            return new \GuzzleHttp\Psr7\Request(
-                $apiRequest->getMethod(),
-                $apiRequest->getPath(),
-                ['Content-Type' => 'application/json'],
-                json_encode($this->buildBody($apiRequest))
-            );
-        }
-
         if (class_exists('\\GuzzleHttp\\Message\\Request')
             && method_exists($this->client, 'createRequest')
         ) {
@@ -103,6 +94,15 @@ private function buildRequest($apiRequest)
             );
         }
 
+        if (class_exists('\\GuzzleHttp\\Psr7\\Request')) {
+            return new \GuzzleHttp\Psr7\Request(
+                $apiRequest->getMethod(),
+                $apiRequest->getPath(),
+                ['Content-Type' => 'application/json'],
+                json_encode($this->buildBody($apiRequest))
+            );
+        }
+
         throw new \Exception("Can't build request");
     }