diff --git a/Cargo.toml b/Cargo.toml
index c844a48..140be77 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -4,7 +4,7 @@ version = "0.1.0"
 edition = "2021"
 authors = ["Daniel López Azaña <daniloaz@gmail.com>"]
 description = "A Rust client for Lightstreamer, designed to facilitate real-time communication with Lightstreamer servers."
-license = "GPL 3.0"
+license = "GPL-3.0-only"
 repository = "https://github.com/daniloaz/lightstreamer-client"
 documentation = "https://github.com/daniloaz/lightstreamer-client#readme"