diff --git a/code/GraphQL/LinkablePlugin.php b/code/GraphQL/LinkablePlugin.php
index ff09f16a77..954fe61d41 100644
--- a/code/GraphQL/LinkablePlugin.php
+++ b/code/GraphQL/LinkablePlugin.php
@@ -14,11 +14,15 @@
 use SilverStripe\GraphQL\Schema\Schema;
 use SilverStripe\ORM\ArrayList;
 use SilverStripe\ORM\DataList;
+use SilverStripe\Dev\Deprecation;
 
 if (!interface_exists(ModelQueryPlugin::class)) {
     return;
 }
 
+/**
+ * @deprecated 5.3.0 Will be moved to the silverstripe/graphql module in CMS 6
+ */
 class LinkablePlugin implements ModelQueryPlugin
 {
     use Configurable;
@@ -43,6 +47,13 @@ class LinkablePlugin implements ModelQueryPlugin
      */
     private static $resolver = [__CLASS__, 'applyLinkFilter'];
 
+    public function __construct()
+    {
+        Deprecation::withNoReplacement(function () {
+            Deprecation::notice('5.3.0', 'Will be moved to the silverstripe/graphql module in CMS 6', Deprecation::SCOPE_CLASS);
+        });
+    }
+
     /**
      * @return string
      */
diff --git a/code/GraphQL/Resolver.php b/code/GraphQL/Resolver.php
index 0dac373afc..e079dfb3a1 100644
--- a/code/GraphQL/Resolver.php
+++ b/code/GraphQL/Resolver.php
@@ -4,9 +4,20 @@
 namespace SilverStripe\CMS\GraphQL;
 
 use SilverStripe\CMS\Model\SiteTree;
+use SilverStripe\Dev\Deprecation;
 
+/**
+ * @deprecated 5.3.0 Will be moved to the silverstripe/graphql module in CMS 6
+ */
 class Resolver
 {
+    public function __construct()
+    {
+        Deprecation::withNoReplacement(function () {
+            Deprecation::notice('5.3.0', 'Will be moved to the silverstripe/graphql module in CMS 6', Deprecation::SCOPE_CLASS);
+        });
+    }
+
     public static function resolveGetPageByLink($obj, array $args = [])
     {
         return SiteTree::get_by_link($args['link']);