diff --git a/core/mappings/migrations/0049_mapping_mappings_sort_weight_next.py b/core/mappings/migrations/0049_mapping_mappings_sort_weight_next.py
new file mode 100644
index 000000000..8321a4c2a
--- /dev/null
+++ b/core/mappings/migrations/0049_mapping_mappings_sort_weight_next.py
@@ -0,0 +1,17 @@
+# Generated by Django 4.2.4 on 2023-12-21 04:28
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('mappings', '0048_auto_20230912_0327'),
+    ]
+
+    operations = [
+        migrations.AddIndex(
+            model_name='mapping',
+            index=models.Index(condition=models.Q(('id', models.F('versioned_object_id')), ('retired', False), ('sort_weight__isnull', False)), fields=['from_concept_id', 'sort_weight', 'parent_id', 'map_type'], name='mappings_sort_weight_next'),
+        ),
+    ]