diff --git a/ipv4/mu.cidr b/ipv4/mu.cidr
index 391b0860b..bc204faf9 100644
--- a/ipv4/mu.cidr
+++ b/ipv4/mu.cidr
@@ -35,6 +35,7 @@
 102.140.176.0/20
 102.160.0.0/14
 102.176.128.0/19
+102.221.182.0/23
 102.222.25.0/24
 102.222.104.0/22
 102.223.206.0/23
diff --git a/ipv4/zz.cidr b/ipv4/zz.cidr
index 1e30ccd3e..4b5be4bf1 100644
--- a/ipv4/zz.cidr
+++ b/ipv4/zz.cidr
@@ -80,7 +80,7 @@
 102.221.154.0/24
 102.221.156.0/22
 102.221.160.0/21
-102.221.180.0/22
+102.221.180.0/23
 102.221.192.0/22
 102.221.248.0/22
 102.222.12.0/22