diff --git a/readthedocs/projects/migrations/0094_alter_importedfile_id.py b/readthedocs/projects/migrations/0094_alter_importedfile_id.py
new file mode 100644
index 00000000000..f2bdb89dc43
--- /dev/null
+++ b/readthedocs/projects/migrations/0094_alter_importedfile_id.py
@@ -0,0 +1,18 @@
+# Generated by Django 3.2.15 on 2022-10-18 14:21
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ("projects", "0093_migrate_null_fields"),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name="importedfile",
+            name="id",
+            field=models.BigAutoField(primary_key=True, serialize=False),
+        ),
+    ]
diff --git a/readthedocs/projects/models.py b/readthedocs/projects/models.py
index 24c10161d2d..4e3cd3a2f80 100644
--- a/readthedocs/projects/models.py
+++ b/readthedocs/projects/models.py
@@ -1345,6 +1345,7 @@ class ImportedFile(models.Model):
     things like CDN invalidation.
     """
 
+    id = models.BigAutoField(primary_key=True)
     project = models.ForeignKey(
         Project,
         verbose_name=_('Project'),