diff --git a/data/ip2region_v4.xdb b/data/ip2region_v4.xdb
index 45edd14..d65a0db 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 1ef427f..5005109 100644
--- a/data/ipv4_source.txt
+++ b/data/ipv4_source.txt
@@ -218967,7 +218967,9 @@
 103.215.241.0|103.215.241.255|India|Maharashtra|0|0|IN
 103.215.242.0|103.215.242.255|India|Meghalaya|Shillong|0|IN
 103.215.243.0|103.215.243.255|India|Mizoram|Aizawl|0|IN
-103.215.244.0|103.216.95.255|India|Delhi|Alīpur|0|IN
+103.215.244.0|103.216.39.255|India|Delhi|Alīpur|0|IN
+103.216.40.0|103.216.43.255|中国|北京|北京市|CNIX|CN
+103.216.44.0|103.216.95.255|India|Delhi|Alīpur|0|IN
 103.216.96.0|103.216.97.255|Thailand|Bangkok|Bangkok|0|TH
 103.216.98.0|103.216.98.255|India|Maharashtra|Mumbai|0|IN
 103.216.99.0|103.216.99.255|India|Tripura|Udaipur|0|IN