diff --git a/Cargo.lock b/Cargo.lock
index fae5a93..42232e5 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -432,14 +432,14 @@ dependencies = [
 
 [[package]]
 name = "curve25519-dalek"
-version = "4.1.3"
+version = "5.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "97fb8b7c4503de7d6ae7b42ab72a5a59857b4c937ec27a3d4539dba95b5ab2be"
+checksum = "b5eed333089e2e1c1ac8c6c0398e5e2497b4c9926ca6d0365ed1e099afa5bc23"
 dependencies = [
  "cfg-if",
- "cpufeatures 0.2.17",
+ "cpufeatures 0.3.0",
  "curve25519-dalek-derive",
- "digest 0.10.7",
+ "digest 0.11.2",
  "fiat-crypto",
  "rustc_version",
  "subtle",
@@ -522,27 +522,27 @@ dependencies = [
  "digest 0.10.7",
  "elliptic-curve",
  "rfc6979",
- "signature",
+ "signature 2.2.0",
 ]
 
 [[package]]
 name = "ed25519"
-version = "2.2.3"
+version = "3.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "115531babc129696a58c64a4fef0a8bf9e9698629fb97e9e40767d235cfbcd53"
+checksum = "29fcf32e6c73d1079f83ab4d782de2d81620346a5f38c6237a86a22f8368980a"
 dependencies = [
- "signature",
+ "signature 3.0.0",
 ]
 
 [[package]]
 name = "ed25519-dalek"
-version = "2.2.0"
+version = "3.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "70e796c081cee67dc755e1a36a0a172b897fab85fc3f6bc48307991f64e4eca9"
+checksum = "6ebaa1a2bf1290ab3bfe5a7b771d050ebffab2711c19a81691c683a5144a25de"
 dependencies = [
  "curve25519-dalek",
  "ed25519",
- "sha2 0.10.9",
+ "sha2 0.11.0",
  "subtle",
 ]
 
@@ -576,9 +576,9 @@ dependencies = [
 
 [[package]]
 name = "fiat-crypto"
-version = "0.2.9"
+version = "0.3.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "28dea519a9695b9977216879a3ebfddf92f1c08c05d984f8996aecd6ecdc811d"
+checksum = "64cd1e32ddd350061ae6edb1b082d7c54915b5c672c389143b9a63403a109f24"
 
 [[package]]
 name = "find-msvc-tools"
@@ -1278,6 +1278,12 @@ dependencies = [
  "rand_core 0.6.4",
 ]
 
+[[package]]
+name = "signature"
+version = "3.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "28d567dcbaf0049cb8ac2608a76cd95ff9e4412e1899d389ee400918ca7537f5"
+
 [[package]]
 name = "sponge-cursor"
 version = "0.1.0"
diff --git a/Cargo.toml b/Cargo.toml
index bf751f6..9c5717e 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -42,7 +42,7 @@ bip39 = { version = "2.2.2", default-features = false }
 bitcoin = { version = "0.32.100", default-features = false }
 blake2 = { version = "0.10.6", default-features = false }
 bs58 = { version = "0.5.1", default-features = false, features = ["alloc"] }
-ed25519-dalek = { version = "2.2.0", default-features = false }
+ed25519-dalek = { version = "3.0.0", default-features = false }
 hex = { version = "0.4.3", default-features = false }
 hmac = { version = "0.13.0", default-features = false }
 k256 = { version = "0.13.4", default-features = false, features = ["ecdsa"] }