diff --git a/axes/models.py b/axes/models.py
index db826da..23b575e 100644
--- a/axes/models.py
+++ b/axes/models.py
@@ -6,7 +6,7 @@ class CommonAccess(models.Model):
         max_length=255,
     )
 
-    ip_address = models.IPAddressField(
+    ip_address = models.GenericIPAddressField(
         verbose_name='IP Address',
         null=True,
     )