diff --git a/Cargo.toml b/Cargo.toml
index 6076d29..cd49b34 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -20,7 +20,7 @@ features = ["nightly"]
 
 [dependencies]
 curve25519-dalek = { version = "3.0.0", features = ["serde"] }
-rand_core = "0.5.1"
+rand_core = "0.6.4"
 serde = { version = "1.0", features = ["derive"] }
 zeroize = "1.1.0"