diff --git a/Cargo.lock b/Cargo.lock
index 507e8eb0..b77b1631 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -611,9 +611,9 @@ 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/signature/Cargo.toml b/signature/Cargo.toml
index 2c897be7..35c5082c 100644
--- a/signature/Cargo.toml
+++ b/signature/Cargo.toml
@@ -13,7 +13,7 @@ categories = ["cryptography"]
 
 [dependencies]
 ecdsa = { version = "^0.16.9", features = ["der", "signing", "verifying"] }
-ed25519-dalek = { version = "2.1.0", features = ["rand_core"] }
+ed25519-dalek = { version = "2.1.1", features = ["rand_core"] }
 generic-array = "^0.14.7"
 p256 = { version = "^0.13.2", features = ["ecdsa"] }
 rand = "^0.8"
diff --git a/tests/Cargo.toml b/tests/Cargo.toml
index 89bc48b3..5cb5bcc5 100644
--- a/tests/Cargo.toml
+++ b/tests/Cargo.toml
@@ -12,7 +12,7 @@ publish = false
 
 [dependencies]
 base64 = "^0.21"
-ed25519-dalek = { version = "2.1.0", features = ["rand_core"] }
+ed25519-dalek = { version = "2.1.1", features = ["rand_core"] }
 generic-array = "^0.14.7"
 hex = "^0.4.3"
 p256 = { version = "^0.13.2", features = ["ecdsa", "pkcs8"] }