diff --git a/bot/server.cfg b/bot/server.cfg
index fcea520..d4262c9 100644
--- a/bot/server.cfg
+++ b/bot/server.cfg
@@ -27,6 +27,11 @@ exec banned.cfg
 
 // fast download
 sv_downloadurl "http://94.140.114.89/fastdl/half-life/"
+
+// secured connections for Yggdrasil
+// option supported by https://github.com/YGGverse/xash3d-fwgs/tree/sv-downloadurl-ipv6
+sv_downloadurl_ipv6 "http://[201:5eb5:f061:678e:7565:6338:c02c:5251]/fastdl/half-life/"
+
 sv_allowdownload 1
 
 // master server connections