diff --git a/Cargo.toml b/Cargo.toml
index 58003d8..3b26457 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -2,6 +2,7 @@
 authors = ["Sakuhl <2012collector@gmail.com>"]
 name = "wynnrobot"
 version = "0.14.1"
+license = "GPL-3.0-or-later"
 
 [dependencies]
 chrono = "0.4.0"