diff --git a/Classes/Elasticsearch/AbstractIndex.php b/Classes/Elasticsearch/AbstractIndex.php
index 678516a..923e68a 100644
--- a/Classes/Elasticsearch/AbstractIndex.php
+++ b/Classes/Elasticsearch/AbstractIndex.php
@@ -8,7 +8,7 @@
  *  All rights reserved.
  */
 
-use Elasticsearch\Client;
+use Elastic\Elasticsearch\Client;
 use Neos\Flow\Annotations as Flow;
 use Neos\Flow\Log\Utility\LogEnvironment;
 use Psr\Log\LoggerInterface;
diff --git a/Classes/Elasticsearch/ElasticsearchService.php b/Classes/Elasticsearch/ElasticsearchService.php
index 3e4ed70..1238e2a 100644
--- a/Classes/Elasticsearch/ElasticsearchService.php
+++ b/Classes/Elasticsearch/ElasticsearchService.php
@@ -8,10 +8,10 @@
  *  All rights reserved.
  */
 
-use Elasticsearch\Common\Exceptions\Missing404Exception;
+use Elastic\Elasticsearch\Client;
+use Elastic\Elasticsearch\ClientBuilder;
+use Elastic\Elasticsearch\Exception\ClientResponseException;
 use Neos\Flow\Annotations as Flow;
-use Elasticsearch\Client;
-use Elasticsearch\ClientBuilder;
 use Neos\Flow\Log\Utility\LogEnvironment;
 use Neos\Flow\Reflection\ReflectionService;
 use Psr\Log\LoggerInterface;
@@ -28,10 +28,34 @@ class ElasticsearchService
     private $client;
 
     /**
-     * @var array
-     * @Flow\InjectConfiguration(path="elasticsearch.server")
+     * @var string
+     * @Flow\InjectConfiguration(path="elasticsearch.server.scheme")
+     */
+    protected $clientScheme;
+
+    /**
+     * @var string
+     * @Flow\InjectConfiguration(path="elasticsearch.server.host")
+     */
+    protected $clientHost;
+
+    /**
+     * @var int
+     * @Flow\InjectConfiguration(path="elasticsearch.server.port")
+     */
+    protected $clientPort;
+
+    /**
+     * @var string
+     * @Flow\InjectConfiguration(path="elasticsearch.server.user")
      */
-    protected $clientConfiguration;
+    protected $clientUser;
+
+    /**
+     * @var string
+     * @Flow\InjectConfiguration(path="elasticsearch.server.pass")
+     */
+    protected $clientPassword;
 
     /**
      * @var array
@@ -62,9 +86,10 @@ public function recreateElasticIndex(string $indexName): void
 
         $templateName = $indexName . '_template';
 
-        $this->getClient()->indices()->putTemplate([
+        $this->getClient()->indices()->putIndexTemplate([
             'name' => $templateName,
-            'body' => $this->getIndexConfiguration($indexName)
+            'index_patterns' => [$indexName . '*'],
+            'template' => $this->getIndexConfiguration($indexName)
         ]);
 
         $this->logger->info(sprintf('Successfully transferred template %s', $templateName), LogEnvironment::fromMethodName(__METHOD__));
@@ -73,7 +98,10 @@ public function recreateElasticIndex(string $indexName): void
         try {
             $this->getClient()->indices()->delete(['index' => $indexPattern]);
             $this->logger->info(sprintf('Successfully removed indices with pattern %s', $indexPattern), LogEnvironment::fromMethodName(__METHOD__));
-        } catch (Missing404Exception $exception) {
+        } catch (ClientResponseException $exception) {
+            if ($exception->getResponse()->getStatusCode() !== 404) {
+                throw $exception;
+            }
             $this->logger->info(sprintf('Index with pattern %s could not be removed as it is not found', $indexPattern), LogEnvironment::fromMethodName(__METHOD__));
         }
     }
@@ -84,9 +112,18 @@ public function recreateElasticIndex(string $indexName): void
     public function getClient(): Client
     {
         if ($this->client === null) {
-            $this->client = ClientBuilder::create()
-                ->setHosts([$this->clientConfiguration])
-                ->build();
+            $hostString = sprintf('%s://%s:%s', $this->clientScheme, $this->clientHost, $this->clientPort);
+
+            $builder = ClientBuilder::create()
+                ->setHosts([$hostString]);
+
+            if (isset($this->clientUser, $this->clientPassword)) {
+                $builder->setBasicAuthentication($this->clientUser, $this->clientPassword);
+            } else {
+                $this->logger->warning('No credentials for elastic client found. Is this correct?', LogEnvironment::fromMethodName(__METHOD__));
+            }
+
+            $this->client = $builder->build();
         }
 
         return $this->client;
diff --git a/Classes/Elasticsearch/KibanaService.php b/Classes/Elasticsearch/KibanaService.php
index 40cae5b..10d5c8f 100644
--- a/Classes/Elasticsearch/KibanaService.php
+++ b/Classes/Elasticsearch/KibanaService.php
@@ -8,9 +8,9 @@
  *  All rights reserved.
  */
 
+use Elastic\Elasticsearch\Client;
+use Elastic\Elasticsearch\ClientBuilder;
 use Neos\Flow\Annotations as Flow;
-use Elasticsearch\Client;
-use Elasticsearch\ClientBuilder;
 
 /**
  * @Flow\Scope("singleton")
@@ -23,10 +23,34 @@ class KibanaService
     private $client;
 
     /**
-     * @var array
-     * @Flow\InjectConfiguration(path="kibana.server")
+     * @var string
+     * @Flow\InjectConfiguration(path="kibana.server.scheme")
      */
-    protected $clientConfiguration;
+    protected $clientScheme;
+
+    /**
+     * @var string
+     * @Flow\InjectConfiguration(path="kibana.server.host")
+     */
+    protected $clientHost;
+
+    /**
+     * @var int
+     * @Flow\InjectConfiguration(path="kibana.server.port")
+     */
+    protected $clientPort;
+
+    /**
+     * @var string
+     * @Flow\InjectConfiguration(path="kibana.server.user")
+     */
+    protected $clientUser;
+
+    /**
+     * @var string
+     * @Flow\InjectConfiguration(path="kibana.server.pass")
+     */
+    protected $clientPassword;
 
     /**
      * @return Client
@@ -34,9 +58,16 @@ class KibanaService
     public function getClient(): Client
     {
         if ($this->client === null) {
-            $this->client = ClientBuilder::create()
-                ->setHosts([$this->clientConfiguration])
-                ->build();
+            $hostString = sprintf('%s://%s:%s', $this->clientScheme, $this->clientHost, $this->clientPort);
+
+            $builder = ClientBuilder::create()
+                ->setHosts([$hostString]);
+
+            if (isset($this->clientUser, $this->clientPassword)) {
+                $builder->setBasicAuthentication($this->clientUser, $this->clientPassword);
+            }
+
+            $this->client = $builder->build();
         }
 
         return $this->client;
diff --git a/Classes/Persistence/DataSource.php b/Classes/Persistence/DataSource.php
index ca39908..2ff1012 100644
--- a/Classes/Persistence/DataSource.php
+++ b/Classes/Persistence/DataSource.php
@@ -75,7 +75,7 @@ public function connect(): self
         $this->entityManager = $this->entityManagerFactory->create();
 
         if ($this->entityManager->getConnection()->getDatabasePlatform()->getName() === 'mysql') {
-            $this->entityManager->getConnection()->getWrappedConnection()->setAttribute(\PDO::MYSQL_ATTR_USE_BUFFERED_QUERY, false);
+            $this->entityManager->getConnection()->getNativeConnection()->setAttribute(\PDO::MYSQL_ATTR_USE_BUFFERED_QUERY, false);
         }
 
         $this->connection = $this->entityManager->getConnection();
diff --git a/Classes/Transfer/AbstractTransferJob.php b/Classes/Transfer/AbstractTransferJob.php
index 171e0a0..bfd185f 100644
--- a/Classes/Transfer/AbstractTransferJob.php
+++ b/Classes/Transfer/AbstractTransferJob.php
@@ -135,7 +135,7 @@ protected function logStats(bool $summary = false): void
     protected function autoBulkIndex(array $document): void
     {
         $this->bulkIndexStorage['body'][] = [
-            'index' => [
+            'create' => [
                 '_index' => $document['index'],
                 '_id' => $document['id'] ?? null
             ]
@@ -163,7 +163,8 @@ public function flushBulkIndex(): void
         }
 
         foreach ($result['items'] as $resultDocument) {
-            if ($resultDocument['index']['_shards']['failed'] ?? 1 !== 0) {
+            $item = $resultDocument['create'] ?? $resultDocument['index'] ?? [];
+            if (($item['_shards']['failed'] ?? 1) !== 0) {
                 $this->logger->error(sprintf('Ingesting a document in Elasticsearch failed. Details: %s', json_encode($resultDocument, JSON_THROW_ON_ERROR)));
             }
         }
diff --git a/composer.json b/composer.json
index 938be7a..485cf26 100644
--- a/composer.json
+++ b/composer.json
@@ -4,7 +4,7 @@
     "name": "punktde/analytics",
     "require": {
         "neos/flow": "*",
-        "elasticsearch/elasticsearch": ">= 7.0",
+        "elasticsearch/elasticsearch": ">=8.19",
         "league/flysystem-webdav": "*"
     },
     "autoload": {