diff --git a/src/pretix/base/migrations/0291_alter_logentry_object_id.py b/src/pretix/base/migrations/0291_alter_logentry_object_id.py
new file mode 100644
index 000000000..6be090cb8
--- /dev/null
+++ b/src/pretix/base/migrations/0291_alter_logentry_object_id.py
@@ -0,0 +1,18 @@
+# Generated by Django 4.2.16 on 2025-10-06 16:42
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ("pretixbase", "0290_invoice_plugin_data"),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name="logentry",
+            name="object_id",
+            field=models.PositiveBigIntegerField(db_index=True),
+        ),
+    ]
diff --git a/src/pretix/base/models/log.py b/src/pretix/base/models/log.py
index 93530f090..2ccf5c20e 100644
--- a/src/pretix/base/models/log.py
+++ b/src/pretix/base/models/log.py
@@ -66,7 +66,7 @@ class LogEntry(models.Model):
     :type data: str
     """
     content_type = models.ForeignKey(ContentType, on_delete=models.CASCADE)
-    object_id = models.PositiveIntegerField(db_index=True)
+    object_id = models.PositiveBigIntegerField(db_index=True)
     content_object = GenericForeignKey('content_type', 'object_id')
     datetime = models.DateTimeField(auto_now_add=True)
     user = models.ForeignKey('User', null=True, blank=True, on_delete=models.PROTECT)