diff --git a/README.md b/README.md
index 0559b39..8e0ce14 100644
--- a/README.md
+++ b/README.md
@@ -1,13 +1,18 @@
 # v2box
 
 Migrate your v2ray configuration into sing-box.
+for 09.11.2023 go 1.19 is required (not 1.21)
 
 ## Usage
 
 ```bash
-v2box migrate -c /path/to/v2ray-config.json > config.json
-v2box migrate geoip -i /path/to/geoip.dat -o geoip.db
-v2box migrate geosite -i /path/to/geosite.dat -o geosite.db
+git clone https://github.com/SagerNet/v2box
+cd v2box
+make build
+
+./v2box migrate -c /path/to/v2ray-config.json > config.json
+./v2box migrate geoip -i /path/to/geoip.dat -o geoip.db
+./v2box migrate geosite -i /path/to/geosite.dat -o geosite.db
 ```
 
 ## TODO