diff --git a/Cargo.lock b/Cargo.lock
index 91c18e3562e..eb23bb27afd 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1124,8 +1124,23 @@ dependencies = [
  "cfg-if",
  "cpufeatures 0.2.17",
  "curve25519-dalek-derive",
- "digest 0.10.7",
- "fiat-crypto",
+ "fiat-crypto 0.2.9",
+ "rustc_version",
+ "subtle",
+ "zeroize",
+]
+
+[[package]]
+name = "curve25519-dalek"
+version = "5.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b5eed333089e2e1c1ac8c6c0398e5e2497b4c9926ca6d0365ed1e099afa5bc23"
+dependencies = [
+ "cfg-if",
+ "cpufeatures 0.3.0",
+ "curve25519-dalek-derive",
+ "digest 0.11.3",
+ "fiat-crypto 0.3.0",
  "rustc_version",
  "subtle",
  "zeroize",
@@ -1374,30 +1389,28 @@ dependencies = [
  "digest 0.10.7",
  "elliptic-curve",
  "rfc6979",
- "signature",
+ "signature 2.2.0",
  "spki",
 ]
 
 [[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 = [
- "pkcs8",
- "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",
+ "curve25519-dalek 5.0.0",
  "ed25519",
- "serde",
- "sha2 0.10.9",
+ "sha2 0.11.0",
  "subtle",
  "zeroize",
 ]
@@ -1532,6 +1545,12 @@ version = "0.2.9"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "28dea519a9695b9977216879a3ebfddf92f1c08c05d984f8996aecd6ecdc811d"
 
+[[package]]
+name = "fiat-crypto"
+version = "0.3.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "64cd1e32ddd350061ae6edb1b082d7c54915b5c672c389143b9a63403a109f24"
+
 [[package]]
 name = "file-sharing-example"
 version = "0.1.0"
@@ -2249,7 +2268,7 @@ dependencies = [
  "libc",
  "percent-encoding",
  "pin-project-lite",
- "socket2 0.5.9",
+ "socket2 0.6.5",
  "system-configuration 0.6.1",
  "tokio",
  "tower-service",
@@ -2765,7 +2784,7 @@ dependencies = [
  "elliptic-curve",
  "once_cell",
  "sha2 0.10.9",
- "signature",
+ "signature 2.2.0",
 ]
 
 [[package]]
@@ -4903,7 +4922,7 @@ dependencies = [
  "quinn-udp",
  "rustc-hash",
  "rustls",
- "socket2 0.5.9",
+ "socket2 0.6.5",
  "thiserror 2.0.19",
  "tokio",
  "tracing",
@@ -5884,6 +5903,12 @@ 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 = "simd-adler32"
 version = "0.3.9"
@@ -5945,7 +5970,7 @@ dependencies = [
  "aes-gcm",
  "blake2",
  "chacha20poly1305",
- "curve25519-dalek",
+ "curve25519-dalek 4.1.3",
  "rand_core 0.6.4",
  "ring",
  "rustc_version",
@@ -7350,7 +7375,7 @@ version = "0.1.9"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "cf221c93e13a30d793f7645a0e7762c55d169dbb0a49671918a2319d289b10bb"
 dependencies = [
- "windows-sys 0.48.0",
+ "windows-sys 0.59.0",
 ]
 
 [[package]]
@@ -7986,7 +8011,7 @@ version = "2.0.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "c7e468321c81fb07fa7f4c636c3972b9100f0346e5b6a9f2bd0603a52f7ed277"
 dependencies = [
- "curve25519-dalek",
+ "curve25519-dalek 4.1.3",
  "rand_core 0.6.4",
  "serde",
  "zeroize",
diff --git a/identity/Cargo.toml b/identity/Cargo.toml
index f9fb0bf8a10..de6cc9f0536 100644
--- a/identity/Cargo.toml
+++ b/identity/Cargo.toml
@@ -14,7 +14,7 @@ categories = ["cryptography"]
 [dependencies]
 asn1_der = { version = "0.7", optional = true }
 bs58 = { version = "0.5", optional = true }
-ed25519-dalek = { version = "2.1", optional = true }
+ed25519-dalek = { version = "3.0", optional = true }
 hkdf = { version = "0.12", optional = true }
 k256 = { version = "0.13", optional = true, features = ["ecdsa", "arithmetic"] }
 tracing = { workspace = true }