diff --git a/Cargo.toml b/Cargo.toml
index 68ba245..aba6c60 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -19,7 +19,7 @@ exclude = [
 features = ["nightly"]
 
 [dependencies]
-curve25519-dalek = { version = "2.0.0", features = ["serde"] }
+curve25519-dalek = { version = "3.0.0", features = ["serde"] }
 rand_core = "0.5.1"
 serde = { version = "1.0", features = ["derive"] }
 zeroize = "1.1.0"