diff --git a/src/Index.php b/src/Index.php
index 4f001e3a5..f5a91e874 100644
--- a/src/Index.php
+++ b/src/Index.php
@@ -297,7 +297,7 @@ public function getDocument($id, array $options = []): Document
                 $data = [];
             }
 
-            $doc = new Document($id, $data, $this->getName());
+            $doc = new Document((string) $id, $data, $this->getName());
             $doc->setVersionParams($result);
 
             return $doc;
diff --git a/tests/Base.php b/tests/Base.php
index 6adf4d620..e77ab3dd5 100644
--- a/tests/Base.php
+++ b/tests/Base.php
@@ -46,11 +46,11 @@ protected static function showDeprecated(): void
     }
 
     /**
-     * @param array $params Additional configuration params. Host and Port are already set
+     * @param array $config Additional configuration params. Host and Port are already set
      */
-    protected function _getClient(array $params = [], ?LoggerInterface $logger = null): Client
+    protected function _getClient(array $config = [], ?LoggerInterface $logger = null): Client
     {
-        $config = $params ?: [$this->_getHost().':'.$this->_getPort()];
+        $config['hosts'] ??= [$this->_getHost().':'.$this->_getPort()];
 
         $config['transport_config']['node_pool'] = $config['transport_config']['node_pool'] ?? new TraceableSimpleNodePool(
             new RoundRobin(),