diff --git a/apps/workspaces/migrations/0028_add_created_at_to_user_sql.py b/apps/workspaces/migrations/0028_add_created_at_to_user_sql.py
new file mode 100644
index 0000000..ffbf508
--- /dev/null
+++ b/apps/workspaces/migrations/0028_add_created_at_to_user_sql.py
@@ -0,0 +1,23 @@
+# Generated by Django 3.1.14 on 2024-12-23 11:29
+
+from django.db import migrations
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('workspaces', '0027_auto_20240719_0948'),
+    ]
+
+    operations = [
+        migrations.RunSQL(
+            sql="""
+                ALTER TABLE workspaces_user
+                ADD COLUMN created_at TIMESTAMP WITH TIME ZONE NOT NULL DEFAULT NOW();
+            """,
+            reverse_sql="""
+                ALTER TABLE workspaces_user
+                DROP COLUMN created_at;
+            """,
+        ),
+    ]