diff --git a/data/ip2region_v4.xdb b/data/ip2region_v4.xdb
index b81c73d..8cf49e9 100644
Binary files a/data/ip2region_v4.xdb and b/data/ip2region_v4.xdb differ
diff --git a/data/ipv4_source.txt b/data/ipv4_source.txt
index ffb3687..9553e4d 100644
--- a/data/ipv4_source.txt
+++ b/data/ipv4_source.txt
@@ -335177,8 +335177,8 @@
 103.151.164.0|103.151.165.255|印度尼西亚|0|0|0
 103.151.166.0|103.151.167.255|印度|德里国家首都辖区|德里|0
 103.151.168.0|103.151.171.255|孟加拉|0|0|0
-103.151.172.0|103.151.172.255|中国|香港|0|0
-103.151.173.0|103.151.173.255|韩国|首尔|首尔|0
+103.151.172.0|103.151.172.255|中国|香港|0|ikuuu网络
+103.151.173.0|103.151.173.255|日本|东京|东京|ikuuu网络
 103.151.174.0|103.151.174.255|澳大利亚|西澳大利亚|珀斯|0
 103.151.175.0|103.151.175.255|澳大利亚|0|0|0
 103.151.176.0|103.151.176.255|中国|台湾省|台北|0