diff --git a/src/GridFieldConfigurablePaginator.php b/src/GridFieldConfigurablePaginator.php
index f11034e..51a037c 100644
--- a/src/GridFieldConfigurablePaginator.php
+++ b/src/GridFieldConfigurablePaginator.php
@@ -9,7 +9,6 @@
 use SilverStripe\Forms\GridField\GridFieldPaginator;
 use SilverStripe\Forms\GridField\GridState_Data;
 use SilverStripe\Model\List\ArrayList;
-use SilverStripe\Model\List\Limitable;
 use SilverStripe\Model\List\SS_List;
 use SilverStripe\ORM\UnsavedRelationList;
 use SilverStripe\Model\ArrayData;
@@ -256,7 +255,7 @@ public function getManipulatedData(GridField $gridField, SS_List $dataList)
             $this->setItemsPerPage($state->pageSize);
         }
 
-        if (!($dataList instanceof Limitable) || ($dataList instanceof UnsavedRelationList)) {
+        if (!($dataList instanceof SS_List) || ($dataList instanceof UnsavedRelationList)) {
             return $dataList;
         }
 
diff --git a/src/GridFieldNestedForm.php b/src/GridFieldNestedForm.php
index 3c8fc51..1266c03 100644
--- a/src/GridFieldNestedForm.php
+++ b/src/GridFieldNestedForm.php
@@ -23,7 +23,6 @@
 use SilverStripe\ORM\DataList;
 use SilverStripe\ORM\DataObject;
 use SilverStripe\ORM\DataObjectInterface;
-use SilverStripe\Model\List\Filterable;
 use SilverStripe\ORM\Hierarchy\Hierarchy;
 use SilverStripe\Model\List\SS_List;
 use SilverStripe\Versioned\Versioned;
@@ -362,7 +361,7 @@ public function handleNestedItem(
             throw new Exception('Max nesting level reached');
         }
         $list = $gridField->getList();
-        if (!$record && $request && $list instanceof Filterable) {
+        if (!$record && $request && $list instanceof SS_List) {
             $recordID = $request->param('RecordID');
             $record = $list->byID($recordID);
         }
@@ -411,7 +410,7 @@ public function toggleNestedItem(
         ModelData|null $record = null
     ) {
         $list = $gridField->getList();
-        if (!$record && $request && $list instanceof Filterable) {
+        if (!$record && $request && $list instanceof SS_List) {
             $recordID = $request->param('RecordID');
             $record = $list->byID($recordID);
         }
@@ -460,7 +459,7 @@ public function handleSave(GridField $gridField, DataObjectInterface $record)
         }
         foreach ($request->postVars() as $key => $val) {
             $list = $gridField->getList();
-            if ($list instanceof Filterable
+            if ($list instanceof SS_List
                 && preg_match("/{$gridField->getName()}-{$postKey}-(\d+)/", $key, $matches)
             ) {
                 $recordID = $matches[1];
@@ -482,7 +481,7 @@ public function getManipulatedData(GridField $gridField, SS_List $dataList)
             && is_a($gridField->getModelClass(), DataObject::class, true)
             && DataObject::has_extension($gridField->getModelClass(), Hierarchy::class)
             && $gridField->getForm()->getController() instanceof ModelAdmin
-            && $dataList instanceof Filterable
+            && $dataList instanceof SS_List
         ) {
             $dataList = $dataList->filter('ParentID', 0);
         }