diff --git a/Cargo.toml b/Cargo.toml
index 216b5b9..0331fa7 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -109,6 +109,7 @@ tokio-tungstenite = { version = "0.20", features = ["rustls-tls-webpki-roots"] }
 ### DATETIME
 chrono = "0.4.29"
 chrono_lc = "0.1.3"
+num-traits = "0.2.16"
 
 ### CLI