diff --git a/src/Illuminate/Database/Eloquent/Relations/Concerns/AsPivot.php b/src/Illuminate/Database/Eloquent/Relations/Concerns/AsPivot.php
index c40d2db8e75..de9f0725338 100644
--- a/src/Illuminate/Database/Eloquent/Relations/Concerns/AsPivot.php
+++ b/src/Illuminate/Database/Eloquent/Relations/Concerns/AsPivot.php
@@ -284,6 +284,8 @@ public function newQueryForRestoration($ids)
      */
     protected function newQueryForCollectionRestoration(array $ids)
     {
+        $ids = array_values($ids);
+
         if (! Str::contains($ids[0], ':')) {
             return parent::newQueryForRestoration($ids);
         }
diff --git a/src/Illuminate/Database/Eloquent/Relations/MorphPivot.php b/src/Illuminate/Database/Eloquent/Relations/MorphPivot.php
index 0db82ba101b..68489265f83 100644
--- a/src/Illuminate/Database/Eloquent/Relations/MorphPivot.php
+++ b/src/Illuminate/Database/Eloquent/Relations/MorphPivot.php
@@ -139,6 +139,8 @@ public function newQueryForRestoration($ids)
      */
     protected function newQueryForCollectionRestoration(array $ids)
     {
+        $ids = array_values($ids);
+
         if (! Str::contains($ids[0], ':')) {
             return parent::newQueryForRestoration($ids);
         }