diff --git a/peachjam/migrations/0159_remove_legislation_old_metadata_json.py b/peachjam/migrations/0159_remove_legislation_old_metadata_json.py
new file mode 100644
index 000000000..313b32b78
--- /dev/null
+++ b/peachjam/migrations/0159_remove_legislation_old_metadata_json.py
@@ -0,0 +1,17 @@
+# Generated by Django 4.2.15 on 2024-09-17 05:08
+
+from django.db import migrations
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ("peachjam", "0158_alter_legislation_old_metadata_json"),
+    ]
+
+    operations = [
+        migrations.RemoveField(
+            model_name="legislation",
+            name="old_metadata_json",
+        ),
+    ]
diff --git a/peachjam/models/generic_document.py b/peachjam/models/generic_document.py
index 85c011c56..6c02a359f 100644
--- a/peachjam/models/generic_document.py
+++ b/peachjam/models/generic_document.py
@@ -61,17 +61,12 @@ def pre_save(self):
 class LegislationManager(CoreDocumentManager):
     def get_queryset(self):
         # defer expensive fields
-        return (
-            super()
-            .get_queryset()
-            .defer("old_metadata_json", "timeline_json", "commencements_json")
-        )
+        return super().get_queryset().defer("timeline_json", "commencements_json")
 
 
 class Legislation(CoreDocument):
     objects = LegislationManager.from_queryset(CoreDocumentQuerySet)()
 
-    old_metadata_json = models.JSONField(_("metadata JSON"), null=True, blank=True)
     timeline_json = models.JSONField(
         _("timeline JSON"), null=False, blank=False, default=list
     )