diff --git a/src/HetznerAPIClient.php b/src/HetznerAPIClient.php
index fe8372e..1166753 100644
--- a/src/HetznerAPIClient.php
+++ b/src/HetznerAPIClient.php
@@ -32,7 +32,7 @@ class HetznerAPIClient
     /**
      * Version of the API Client.
      */
-    const VERSION = '2.9.0';
+    const VERSION = '2.9.1';
 
     const MAX_ENTITIES_PER_PAGE = 50;
 
diff --git a/src/Models/Zones/RRSet.php b/src/Models/Zones/RRSet.php
index a4ccd46..8700be8 100644
--- a/src/Models/Zones/RRSet.php
+++ b/src/Models/Zones/RRSet.php
@@ -14,7 +14,7 @@ class RRSet extends Model implements Resource
     public string $id;
     public string $name;
     public string $type;
-    public int $ttl;
+    public ?int $ttl;
     public array $records;
     public array $labels;
     public ?RRSetProtection $protection;
@@ -64,7 +64,12 @@ public function setAdditionalData($data)
         $this->name = $data->name;
         $this->type = $data->type;
         $this->ttl = $data->ttl;
-        $this->records = $data->records;
+        $records = [];
+        foreach ($data->records as $record) {
+            $records[] = Record::parse($record);
+        }
+
+        $this->records = $records;
         $this->labels = get_object_vars($data->labels);
         $this->protection = RRSetProtection::parse($data->protection);
         $this->zone = $data->zone;
diff --git a/src/Models/Zones/Record.php b/src/Models/Zones/Record.php
index 767a6b1..fbf07b4 100644
--- a/src/Models/Zones/Record.php
+++ b/src/Models/Zones/Record.php
@@ -12,4 +12,9 @@ public function __construct(string $value, string $comment)
         $this->value = $value;
         $this->comment = $comment;
     }
+
+    public static function parse($input): self
+    {
+        return new Record($input->value, $input->comment);
+    }
 }