diff --git a/Cargo.lock b/Cargo.lock
index f20c42d1..e0ff3443 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -163,9 +163,9 @@ dependencies = [
 
 [[package]]
 name = "curve25519-dalek"
-version = "4.0.0-rc.3"
+version = "4.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "436ace70fc06e06f7f689d2624dc4e2f0ea666efb5aa704215f7249ae6e047a7"
+checksum = "f711ade317dd348950a9910f81c5947e3d8907ebd2b83f76203ff1807e6a2bc2"
 dependencies = [
  "cfg-if",
  "cpufeatures",
@@ -236,9 +236,9 @@ dependencies = [
 
 [[package]]
 name = "ed25519-dalek"
-version = "2.0.0-rc.3"
+version = "2.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "faa8e9049d5d72bfc12acbc05914731b5322f79b5e2f195e9f2d705fca22ab4c"
+checksum = "7277392b266383ef8396db7fdeb1e77b6c52fed775f5df15bb24f35b72156980"
 dependencies = [
  "curve25519-dalek",
  "ed25519",
diff --git a/signatory/Cargo.toml b/signatory/Cargo.toml
index 3d686d8f..9033ab0c 100644
--- a/signatory/Cargo.toml
+++ b/signatory/Cargo.toml
@@ -20,7 +20,7 @@ zeroize = "1.5"
 
 # optional dependencies
 ecdsa = { version = "0.16", optional = true, features = ["pem", "pkcs8"] }
-ed25519-dalek = { version = "2.0.0-rc.3", optional = true, default-features = false }
+ed25519-dalek = { version = "2", optional = true, default-features = false }
 k256 = { version = "0.13", optional = true, features = ["ecdsa", "sha256"] }
 p256 = { version = "0.13", optional = true, features = ["ecdsa", "sha256"] }
 p384 = { version = "0.13", optional = true, features = ["ecdsa", "sha384"] }