diff --git a/Cargo.toml b/Cargo.toml
index 3f6a941..86b17cc 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -25,6 +25,7 @@ futures = "0.3.30"
 tun2 = { version = "3.1.4", features = ["async"] }
 packet = "0.1.4"
 crossbeam-channel = "0.5.13"
+hex = "0.4"
 serde_yaml = "0.9.34"
 x25519-dalek = { version = "2.0.1", features = ["getrandom", "static_secrets"] }
 base64 = "0.22.1"