diff --git a/CHANGELOG.md b/CHANGELOG.md
index b85d8d446d..be12d358a8 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,10 +1,19 @@
 # Change Log
 All notable changes to this project will be documented in this file based on the [Keep a Changelog](http://keepachangelog.com/) Standard. This project adheres to [Semantic Versioning](http://semver.org/).
 
-## [Unreleased](https://github.com/ruflin/Elastica/compare/5.3.1...master)
+## [Unreleased](https://github.com/ruflin/Elastica/compare/5.3.2...master)
 
 ### Backward Compatibility Breaks
 
+### Bugfixes
+
+### Added
+
+### Improvements
+
+
+## [Unreleased](https://github.com/ruflin/Elastica/compare/5.3.1...5.3.2)
+
 ### Bugfixes
 - Remove [`each()`](http://www.php.net/each) usage to fix PHP 7.2 compatibility
 - Fix [#1435](https://github.com/ruflin/Elastica/issues/1435) forcing `doc_as_upsert` to be boolean, acording [Elastic doc-update documentation](https://www.elastic.co/guide/en/elasticsearch/reference/current/docs-update.html#_literal_doc_as_upsert_literal)
@@ -13,8 +22,6 @@ All notable changes to this project will be documented in this file based on the
 
 * Added support for multiple bucket sort orders for aggregations.
 
-### Improvements
-
 
 ## [5.3.1](https://github.com/ruflin/Elastica/compare/5.3.0...5.3.1)
 
diff --git a/lib/Elastica/Bulk/Action.php b/lib/Elastica/Bulk/Action.php
index c4292100e8..53b62e1da9 100644
--- a/lib/Elastica/Bulk/Action.php
+++ b/lib/Elastica/Bulk/Action.php
@@ -206,7 +206,7 @@ public function toString()
                 $string .= $source;
             } elseif (is_array($source) && array_key_exists('doc', $source) && is_string($source['doc'])) {
                 if (isset($source['doc_as_upsert'])) {
-                    $docAsUpsert = ', "doc_as_upsert": ' . ($source['doc_as_upsert'] ? 'true' : 'false' );
+                    $docAsUpsert = ', "doc_as_upsert": '.($source['doc_as_upsert'] ? 'true' : 'false');
                 } else {
                     $docAsUpsert = '';
                 }
diff --git a/test/Elastica/Bulk/Action/UpdateDocumentTest.php b/test/Elastica/Bulk/Action/UpdateDocumentTest.php
index 378b54d0f7..df1a068b0b 100644
--- a/test/Elastica/Bulk/Action/UpdateDocumentTest.php
+++ b/test/Elastica/Bulk/Action/UpdateDocumentTest.php
@@ -2,12 +2,12 @@
 namespace Elastica\Test\BulkAction;
 
 use Elastica\Bulk\Action\UpdateDocument;
+use Elastica\Document;
 use Elastica\Index;
 use Elastica\Test\Base as BaseTest;
 use Elastica\Type;
-use Elastica\Document;
 
-class ActionTest extends BaseTest
+class UpdateDocumentTest extends BaseTest
 {
     /**
      * @group unit
@@ -61,7 +61,6 @@ public function testUpdateDocument()
         $expected = '{"update":{"_index":"index2","_type":"type2","_id":1,"_routing":1}}'."\n";
         $expected .= $docExpected;
         $this->assertEquals($expected, $action->toString());
-
     }
 
     /**
@@ -77,7 +76,7 @@ public function testUpdateDocumentAsUpsert()
         $this->assertTrue($action->hasSource());
 
         $expected = '{"update":{"_index":"index","_type":"type","_id":1}}'."\n"
-                . '{"doc":{"foo":"bar"},"doc_as_upsert":true}'."\n";
+                .'{"doc":{"foo":"bar"},"doc_as_upsert":true}'."\n";
         $this->assertEquals($expected, $action->toString());
 
         $document->setDocAsUpsert(1);
@@ -87,7 +86,7 @@ public function testUpdateDocumentAsUpsert()
         $document->setDocAsUpsert(false);
         $action->setDocument($document);
         $expected = '{"update":{"_index":"index","_type":"type","_id":1}}'."\n"
-                . '{"doc":{"foo":"bar"}}'."\n";
+                .'{"doc":{"foo":"bar"}}'."\n";
         $this->assertEquals($expected, $action->toString());
 
         $document->setDocAsUpsert(0);
diff --git a/test/Elastica/BulkTest.php b/test/Elastica/BulkTest.php
index 2cb24a8e1a..71962a469e 100644
--- a/test/Elastica/BulkTest.php
+++ b/test/Elastica/BulkTest.php
@@ -567,7 +567,9 @@ public function testUpsert()
         $doc2 = $type->createDocument(2, ['name' => 'Beckenbauer']);
         $doc3 = $type->createDocument(3, ['name' => 'Baggio']);
         $doc4 = $type->createDocument(4, ['name' => 'Cruyff']);
-        $documents = array_map(function($d){ $d->setDocAsUpsert(true); return $d;}, [$doc1, $doc2, $doc3, $doc4]);
+        $documents = array_map(function ($d) { $d->setDocAsUpsert(true);
+
+return $d;}, [$doc1, $doc2, $doc3, $doc4]);
 
         //index some documents
         $bulk = new Bulk($client);