diff --git a/README.md b/README.md
index 90fa633f..134bc3d3 100644
--- a/README.md
+++ b/README.md
@@ -54,6 +54,18 @@ class Page extends SiteTree
         'HasOneLink' => Link::class,
     ];
 
+    private static array $owns = [
+        'HasOneLink'
+    ];
+
+    private static array $cascade_deletess = [
+        'HasOneLink'
+    ];
+
+    private static array $cascade_duplicatess = [
+        'HasOneLink'
+    ];
+
     public function getCMSFields()
     {
         $fields = parent::getCMSFields();
diff --git a/_config.php b/_config.php
index 9e519d4a..71c7914c 100644
--- a/_config.php
+++ b/_config.php
@@ -5,5 +5,4 @@
 
 // Avoid creating global variables
 call_user_func(function () {
-
 });
diff --git a/src/Models/Link.php b/src/Models/Link.php
index 87d2de0f..809ccc23 100644
--- a/src/Models/Link.php
+++ b/src/Models/Link.php
@@ -16,6 +16,7 @@
 use SilverStripe\ORM\DataObject;
 use SilverStripe\ORM\FieldType\DBHTMLText;
 use SilverStripe\View\Requirements;
+use SilverStripe\Versioned\Versioned;
 
 /**
  * A Link Data Object. This class should be a subclass, and you should never directly interact with a plain Link
@@ -32,6 +33,10 @@ class Link extends DataObject implements JsonData, Type
         'Title' => 'Varchar',
         'OpenInNew' => 'Boolean',
     ];
+    
+    private static array $extensions = [
+        Versioned::class
+    ];
 
     /**
      * In-memory only property used to change link type