diff --git a/tournaments/migrations/0045_alter_purchase_identifier.py b/tournaments/migrations/0045_alter_purchase_identifier.py
new file mode 100644
index 0000000..fe1f314
--- /dev/null
+++ b/tournaments/migrations/0045_alter_purchase_identifier.py
@@ -0,0 +1,18 @@
+# Generated by Django 4.2.11 on 2024-05-15 13:46
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('tournaments', '0044_rename_summonsavailablepaymentmethods_customuser_summons_available_payment_methods'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='purchase',
+            name='identifier',
+            field=models.BigIntegerField(),
+        ),
+    ]
diff --git a/tournaments/models/purchase.py b/tournaments/models/purchase.py
index 6dd45dd..c0a4d37 100644
--- a/tournaments/models/purchase.py
+++ b/tournaments/models/purchase.py
@@ -5,7 +5,7 @@ from . import CustomUser
 class Purchase(models.Model):
     id = models.UUIDField(primary_key=True, default=uuid.uuid4, editable=True)
     user = models.ForeignKey(CustomUser, on_delete=models.CASCADE)
-    identifier = models.IntegerField()
+    identifier = models.BigIntegerField()
     purchase_date = models.DateTimeField()
     product_id = models.CharField(max_length=100)
     quantity = models.IntegerField(null=True, blank=True)