diff --git a/Cargo.lock b/Cargo.lock
index 97632a2..773ee61 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -10,7 +10,7 @@ checksum = "f1fc76eaeac4c9164506c466d4ffdd8ec9d0c5bf57ee97177c4d8eceb3a0e138"
 dependencies = [
  "cipher",
  "cpubits",
- "cpufeatures 0.3.0",
+ "cpufeatures",
 ]
 
 [[package]]
@@ -162,7 +162,7 @@ dependencies = [
  "cc",
  "cfg-if",
  "constant_time_eq",
- "cpufeatures 0.3.0",
+ "cpufeatures",
  "digest",
  "serde",
 ]
@@ -245,7 +245,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "6f8d983286843e49675a4b7a2d174efe136dc93a18d69130dd18198a6c167601"
 dependencies = [
  "cfg-if",
- "cpufeatures 0.3.0",
+ "cpufeatures",
  "rand_core 0.10.1",
 ]
 
@@ -356,15 +356,6 @@ version = "0.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "5ef0c543070d296ea414df2dd7625d1b24866ce206709d8a4a424f28377f5861"
 
-[[package]]
-name = "cpufeatures"
-version = "0.2.17"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "59ed5838eebb26a2bb2e58f6d5b5316989ae9d08bab10e0e6d103e656d1b0280"
-dependencies = [
- "libc",
-]
-
 [[package]]
 name = "cpufeatures"
 version = "0.3.0"
@@ -447,7 +438,7 @@ version = "0.2.5"
 dependencies = [
  "aes",
  "bytemuck",
- "cpufeatures 0.3.0",
+ "cpufeatures",
  "criterion",
  "cryprot-core",
  "fastdivide",
@@ -464,7 +455,7 @@ dependencies = [
  "aes",
  "blake3",
  "bytemuck",
- "cpufeatures 0.3.0",
+ "cpufeatures",
  "criterion",
  "hybrid-array",
  "libc",
@@ -582,15 +573,16 @@ 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",
  "curve25519-dalek-derive",
+ "digest",
  "fiat-crypto",
- "rand_core 0.6.4",
+ "rand_core 0.10.1",
  "rustc_version",
  "serde",
  "subtle",
@@ -766,9 +758,9 @@ checksum = "9f1f227452a390804cdb637b74a86990f2a7d7ba4b7d5693aac9b4dd6defd8d6"
 
 [[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"
@@ -1086,7 +1078,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "9e24a010dd405bd7ed803e5253182815b41bf2e6a80cc3bfc066658e03a198aa"
 dependencies = [
  "cfg-if",
- "cpufeatures 0.3.0",
+ "cpufeatures",
 ]
 
 [[package]]
diff --git a/Cargo.toml b/Cargo.toml
index 4f874f4..82e6118 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -26,7 +26,7 @@ cryprot-codes = { version = "0.2.5", path = "cryprot-codes" }
 cryprot-core = { version = "0.3.4", path = "cryprot-core" }
 cryprot-net = { version = "0.2.5", path = "cryprot-net" }
 cryprot-pprf = { version = "0.2.5", path = "cryprot-pprf" }
-curve25519-dalek = "4.1.3"
+curve25519-dalek = "5.0.0"
 fastdivide = "0.4.2"
 futures = "0.3.32"
 hybrid-array = { version = "0.4.12", features = ["bytemuck"] }