diff --git a/Connection/Handler/RequestSerializationHandler.php b/Connection/Handler/RequestSerializationHandler.php
index 6ffb5e8..38bfd71 100644
--- a/Connection/Handler/RequestSerializationHandler.php
+++ b/Connection/Handler/RequestSerializationHandler.php
@@ -61,7 +61,7 @@ public function __invoke($request)
             unset($request['query_params']);
         }
 
-        if (!empty($body)) {
+        if (!empty($body) && 'GET' !== $request['http_method']) {
             ksort($body);
             $request['body'] = $this->serializer->serialize($body);
         }
diff --git a/Serializer/SmartSerializer.php b/Serializer/SmartSerializer.php
index 0d833ec..406fe33 100644
--- a/Serializer/SmartSerializer.php
+++ b/Serializer/SmartSerializer.php
@@ -115,7 +115,7 @@ private function decode($data)
             return '';
         }
 
-        $result = @json_decode($data, true);
+        $result = json_decode($data, true);
 
         if (JSON_ERROR_NONE !== json_last_error() && E_NOTICE === (error_reporting() & E_NOTICE)) {
             throw new JsonErrorException(json_last_error(), $data, $result);
diff --git a/Tests/Unit/Connection/Handler/RequestSerializationHandlerTest.php b/Tests/Unit/Connection/Handler/RequestSerializationHandlerTest.php
index a923b33..d981b2c 100644
--- a/Tests/Unit/Connection/Handler/RequestSerializationHandlerTest.php
+++ b/Tests/Unit/Connection/Handler/RequestSerializationHandlerTest.php
@@ -39,10 +39,16 @@ public function testSerializeRequest($request, $expectedBody)
     public function requestDataProvider()
     {
         $data = [
-            [['body' => ['foo' => 'bar']], '{"foo":"bar"}'],
-            [['query_params' => ['foo' => 'bar']], '{"foo":"bar"}'],
-            [['body' => ['foo' => 'bar'], 'query_params' => ['foo' => 'bar']], '{"foo":"bar"}'],
-            [['body' => ['foo1' => 'bar1'], 'query_params' => ['foo2' => 'bar2']], '{"foo1":"bar1","foo2":"bar2"}'],
+            [['http_method' => 'POST', 'body' => ['foo' => 'bar']], '{"foo":"bar"}'],
+            [['http_method' => 'GET', 'query_params' => ['foo' => 'bar']], null],
+            [
+                ['http_method' => 'POST', 'body' => ['foo' => 'bar'], 'query_params' => ['foo' => 'bar']],
+                '{"foo":"bar"}'
+            ],
+            [
+                ['http_method' => 'POST', 'body' => ['foo1' => 'bar1'], 'query_params' => ['foo2' => 'bar2']],
+                '{"foo1":"bar1","foo2":"bar2"}'
+            ],
             [[], null],
         ];