diff --git a/sample-04-rs/Cargo.toml b/sample-04-rs/Cargo.toml
index cd87f092..c700a9b7 100644
--- a/sample-04-rs/Cargo.toml
+++ b/sample-04-rs/Cargo.toml
@@ -17,7 +17,7 @@ cbc = { version = "0.1.2", features = ["alloc"] }
 clap = { version = "4.5.20", features = ["std", "cargo", "wrap_help", "derive"] }
 hkdf = "0.12.4"
 pbkdf2 = "0.12.2"
-rand = "0.8.5"
+rand = "0.9.0"
 reqwest = { version = "0.12.8", features = ["json"] }
 serde = { version = "1.0.213", features = ["derive"] }
 sha2 = "0.10.8"
@@ -30,4 +30,4 @@ tokio = { version = "1.41.0", default-features = false, features = [
 ] }
 
 [dev-dependencies]
-hex-literal = "0.4.1"
+hex-literal = "1.0.0"