diff --git a/apps/assets/migrations/0027_auto_20190521_1703.py b/apps/assets/migrations/0027_auto_20190521_1703.py
new file mode 100644
index 000000000..da38b1791
--- /dev/null
+++ b/apps/assets/migrations/0027_auto_20190521_1703.py
@@ -0,0 +1,18 @@
+# Generated by Django 2.1.7 on 2019-05-21 09:03
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('assets', '0026_auto_20190325_2035'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='asset',
+            name='ip',
+            field=models.CharField(db_index=True, max_length=128, verbose_name='IP'),
+        ),
+    ]
diff --git a/apps/assets/models/asset.py b/apps/assets/models/asset.py
index 078221e85..47a34243d 100644
--- a/apps/assets/models/asset.py
+++ b/apps/assets/models/asset.py
@@ -71,7 +71,7 @@ class Asset(OrgModelMixin):
     )
 
     id = models.UUIDField(default=uuid.uuid4, primary_key=True)
-    ip = models.GenericIPAddressField(max_length=32, verbose_name=_('IP'), db_index=True)
+    ip = models.CharField(max_length=128, verbose_name=_('IP'), db_index=True)
     hostname = models.CharField(max_length=128, verbose_name=_('Hostname'))
     protocol = models.CharField(max_length=128, default=PROTOCOL_SSH, choices=PROTOCOL_CHOICES, verbose_name=_('Protocol'))
     port = models.IntegerField(default=22, verbose_name=_('Port'))
diff --git a/requirements/requirements.txt b/requirements/requirements.txt
index bd48a40e7..5b3a786d0 100644
--- a/requirements/requirements.txt
+++ b/requirements/requirements.txt
@@ -81,3 +81,4 @@ tencentcloud-sdk-python==3.0.40
 django-radius==1.3.3
 ipip-ipdb==1.2.1
 django-redis-sessions==0.6.1
+unicodecsv==0.14.1