diff --git a/netbox/extras/migrations/0105_customfield_min_max_values.py b/netbox/extras/migrations/0105_customfield_min_max_values.py
new file mode 100644
index 00000000000..bcf3f97bdec
--- /dev/null
+++ b/netbox/extras/migrations/0105_customfield_min_max_values.py
@@ -0,0 +1,23 @@
+# Generated by Django 4.2.8 on 2023-12-27 20:24
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('extras', '0104_stagedchange_remove_change_logging'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='customfield',
+            name='validation_maximum',
+            field=models.BigIntegerField(blank=True, null=True),
+        ),
+        migrations.AlterField(
+            model_name='customfield',
+            name='validation_minimum',
+            field=models.BigIntegerField(blank=True, null=True),
+        ),
+    ]
diff --git a/netbox/extras/models/customfields.py b/netbox/extras/models/customfields.py
index d667c9a2268..e8bc0fa5dae 100644
--- a/netbox/extras/models/customfields.py
+++ b/netbox/extras/models/customfields.py
@@ -156,13 +156,13 @@ class CustomField(CloningMixin, ExportTemplatesMixin, ChangeLoggedModel):
         verbose_name=_('display weight'),
         help_text=_('Fields with higher weights appear lower in a form.')
     )
-    validation_minimum = models.IntegerField(
+    validation_minimum = models.BigIntegerField(
         blank=True,
         null=True,
         verbose_name=_('minimum value'),
         help_text=_('Minimum allowed value (for numeric fields)')
     )
-    validation_maximum = models.IntegerField(
+    validation_maximum = models.BigIntegerField(
         blank=True,
         null=True,
         verbose_name=_('maximum value'),