diff --git a/Cargo.lock b/Cargo.lock
index 17a7f89..1dca8d3 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -347,9 +347,9 @@ dependencies = [
 
 [[package]]
 name = "ed25519-dalek"
-version = "2.1.0"
+version = "2.1.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1f628eaec48bfd21b865dc2950cfa014450c01d2fa2b69a86c2fd5844ec523c0"
+checksum = "4a3daa8e81a3963a60642bcc1f90a670680bd4a77535faa384e9d1c79d620871"
 dependencies = [
  "curve25519-dalek",
  "ed25519",
diff --git a/Cargo.toml b/Cargo.toml
index 187225f..e2b3bfa 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -13,7 +13,7 @@ crypto-common = "0.1.6"
 der = "0.7.8"
 digest = "0.10.7"
 ecdsa = "0.16.8"
-ed25519-dalek = { version = "2.0.0", features = ["pkcs8"] }
+ed25519-dalek = { version = "2.1.1", features = ["pkcs8"] }
 elliptic-curve = "0.13.5"
 generic-array = "0.14.7"
 hmac = "0.12.1"