diff --git a/mirrors/fields.py b/mirrors/fields.py
index ceb20a7e..3216d831 100644
--- a/mirrors/fields.py
+++ b/mirrors/fields.py
@@ -1,10 +1,14 @@
-from IPy import IP
-
 from django import forms
 from django.core import validators
 from django.core.exceptions import ValidationError
 from django.db import models
 
+from ipaddress import ip_address, ip_interface
+
+def IP(address):
+    if '/' not in address:
+        return ip_address(address)
+    return ip_interface(address)
 
 class IPNetworkFormField(forms.Field):
     def to_python(self, value):
diff --git a/mirrors/tests/test_mirrorrsync.py b/mirrors/tests/test_mirrorrsync.py
index bf5d26fd..fe8ee5af 100644
--- a/mirrors/tests/test_mirrorrsync.py
+++ b/mirrors/tests/test_mirrorrsync.py
@@ -4,7 +4,9 @@
 
 
 TEST_IPV6 = "2a0b:4342:1a31:410::"
+TEST_IPV6_MASK = "2a0b:4342:1a31:410::/64"
 TEST_IPV4 = "8.8.8.8"
+TEST_IPV4_MASK = "192.168.1.0/24"
 
 
 class MirrorRsyncTest(TransactionTestCase):
@@ -20,12 +22,22 @@ def test_ipv6(self):
         self.assertEqual(str(mirrorrsync), TEST_IPV6)
         mirrorrsync.delete()
 
+    def test_ipv6_mask(self):
+        mirrorsync = MirrorRsync.objects.create(ip=TEST_IPV6_MASK, mirror=self.mirror)
+        self.assertEqual(str(mirrorsync), TEST_IPV6_MASK)
+        mirrorsync.delete()
+
     def test_ipv4(self):
         mirrorrsync = MirrorRsync.objects.create(ip=TEST_IPV4, mirror=self.mirror)
         self.assertEqual(str(mirrorrsync), TEST_IPV4)
         mirrorrsync.delete()
 
+    def test_ipv4_mask(self):
+        mirrorrsync = MirrorRsync.objects.create(ip=TEST_IPV4_MASK, mirror=self.mirror)
+        self.assertEqual(str(mirrorrsync), TEST_IPV4_MASK)
+        mirrorrsync.delete()
+
     def test_invalid(self):
         with self.assertRaises(ValueError) as e:
             MirrorRsync.objects.create(ip="8.8.8.8.8", mirror=self.mirror)
-        self.assertIn('IPv4 Address with more than 4 bytes', str(e.exception))
+        self.assertIn('does not appear to be an IPv4 or IPv6 address', str(e.exception))
diff --git a/requirements.txt b/requirements.txt
index 8107a325..1ea81185 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,6 +1,5 @@
 -e git+git://github.com/fredj/cssmin.git@master#egg=cssmin
 Django==3.2.7
-IPy==1.1
 Markdown==3.3.4
 bencode.py==4.0.0
 django-countries==7.2.1