From b6f424f23891ed08ba3ae61958f83fd781572d5c Mon Sep 17 00:00:00 2001
From: Arthur Gautier <arthur.gautier@arista.com>
Date: Tue, 25 Feb 2025 10:28:42 -0800
Subject: [PATCH 01/17] use pre-release versions of hashes & MACs

---
 .github/workflows/workspace.yml | 2 +-
 Cargo.toml                      | 8 ++++++++
 2 files changed, 9 insertions(+), 1 deletion(-)

diff --git a/.github/workflows/workspace.yml b/.github/workflows/workspace.yml
index 5005c97..ea7305d 100644
--- a/.github/workflows/workspace.yml
+++ b/.github/workflows/workspace.yml
@@ -17,7 +17,7 @@ jobs:
       - uses: RustCrypto/actions/cargo-cache@master
       - uses: dtolnay/rust-toolchain@master
         with:
-          toolchain: 1.81.0
+          toolchain: 1.85.0
           components: clippy
       - run: cargo clippy --all -- -D warnings
 
diff --git a/Cargo.toml b/Cargo.toml
index 93fc126..83092cc 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -10,3 +10,11 @@ members = [
 
 [profile.dev]
 opt-level = 2
+
+[patch.crates-io]
+belt-hash = { git = "https://github.com/RustCrypto/hashes.git" }
+sha1      = { git = "https://github.com/RustCrypto/hashes.git" }
+sha2      = { git = "https://github.com/RustCrypto/hashes.git" }
+
+hmac = { git = "https://github.com/RustCrypto/MACs.git" }
+cmac = { git = "https://github.com/RustCrypto/MACs.git" }

From 8fa31ff60a5cfe690566b4b90541bc3b6b961455 Mon Sep 17 00:00:00 2001
From: Arthur Gautier <arthur.gautier@arista.com>
Date: Tue, 25 Feb 2025 10:28:42 -0800
Subject: [PATCH 02/17] ansi-x963-kdf: bump to edition 2024; msrv 1.85

---
 .github/workflows/ansi-x963-kdf.yml | 4 ++--
 ansi-x963-kdf/Cargo.toml            | 6 +++---
 ansi-x963-kdf/README.md             | 9 +--------
 3 files changed, 6 insertions(+), 13 deletions(-)

diff --git a/.github/workflows/ansi-x963-kdf.yml b/.github/workflows/ansi-x963-kdf.yml
index 4b7c0fc..03eb402 100644
--- a/.github/workflows/ansi-x963-kdf.yml
+++ b/.github/workflows/ansi-x963-kdf.yml
@@ -22,7 +22,7 @@ jobs:
     strategy:
       matrix:
         rust:
-          - 1.81.0 # MSRV
+          - 1.85.0 # MSRV
           - stable
         target:
           - thumbv7em-none-eabi
@@ -40,7 +40,7 @@ jobs:
     strategy:
       matrix:
         rust:
-          - 1.81.0 # MSRV
+          - 1.85.0 # MSRV
           - stable
     steps:
       - uses: actions/checkout@v4
diff --git a/ansi-x963-kdf/Cargo.toml b/ansi-x963-kdf/Cargo.toml
index ede86ea..6e80748 100644
--- a/ansi-x963-kdf/Cargo.toml
+++ b/ansi-x963-kdf/Cargo.toml
@@ -5,15 +5,15 @@ description = "ANSI X9.63 Key Derivation Function"
 authors = ["RustCrypto Developers"]
 license = "MIT OR Apache-2.0"
 readme = "README.md"
-edition = "2021"
+edition = "2024"
 documentation = "https://docs.rs/ansi-x963-kdf"
 repository = "https://github.com/RustCrypto/KDFs"
 keywords = ["crypto", "ansi-x963-kdf", "KDF", "SEC1"]
 categories = ["cryptography", "no-std"]
-rust-version = "1.81"
+rust-version = "1.85"
 
 [dependencies]
-digest = "=0.11.0-pre.9"
+digest = "=0.11.0-pre.10"
 
 [dev-dependencies]
 hex-literal = "0.4"
diff --git a/ansi-x963-kdf/README.md b/ansi-x963-kdf/README.md
index 7a3bc7f..8f38d07 100644
--- a/ansi-x963-kdf/README.md
+++ b/ansi-x963-kdf/README.md
@@ -24,13 +24,6 @@ ansi_x963_kdf::derive_key_into::<Sha256>(b"secret", b"shared-info", &mut key).un
 assert_eq!(key, hex!("8dbb1d50bcc7fc782abc9db5c64a2826"));
 ```
 
-## Minimum Supported Rust Version
-
-Rust **1.81** or higher.
-
-Minimum supported Rust version can be changed in the future, but it will be
-done with a minor version bump.
-
 ## SemVer Policy
 
 - All on-by-default features of this library are covered by SemVer
@@ -58,6 +51,6 @@ dual licensed as above, without any additional terms or conditions.
 [build-image]: https://github.com/RustCrypto/KDFs/actions/workflows/ansi-x963-kdf.yml/badge.svg
 [build-link]: https://github.com/RustCrypto/KDFs/actions/workflows/ansi-x963-kdf.yml
 [license-image]: https://img.shields.io/badge/license-Apache2.0/MIT-blue.svg
-[rustc-image]: https://img.shields.io/badge/rustc-1.81+-blue.svg
+[rustc-image]: https://img.shields.io/badge/rustc-1.85+-blue.svg
 [chat-image]: https://img.shields.io/badge/zulip-join_chat-blue.svg
 [chat-link]: https://rustcrypto.zulipchat.com/#narrow/stream/260043-KDFs

From 175694d98ebbe0574c170e6bc38d56ddec6e4c7f Mon Sep 17 00:00:00 2001
From: Arthur Gautier <arthur.gautier@arista.com>
Date: Tue, 25 Feb 2025 10:30:23 -0800
Subject: [PATCH 03/17] bake-kdf: bump to edition 2024; msrv 1.85

---
 .github/workflows/bake-kdf.yml | 4 ++--
 bake-kdf/Cargo.toml            | 4 ++--
 bake-kdf/README.md             | 2 +-
 3 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/.github/workflows/bake-kdf.yml b/.github/workflows/bake-kdf.yml
index 099f577..a012fa9 100644
--- a/.github/workflows/bake-kdf.yml
+++ b/.github/workflows/bake-kdf.yml
@@ -22,7 +22,7 @@ jobs:
     strategy:
       matrix:
         rust:
-          - 1.81.0 # MSRV
+          - 1.85.0 # MSRV
           - stable
         target:
           - thumbv7em-none-eabi
@@ -40,7 +40,7 @@ jobs:
     strategy:
       matrix:
         rust:
-          - 1.81.0 # MSRV
+          - 1.85.0 # MSRV
           - stable
     steps:
       - uses: actions/checkout@v4
diff --git a/bake-kdf/Cargo.toml b/bake-kdf/Cargo.toml
index f11ab3c..5d703bc 100644
--- a/bake-kdf/Cargo.toml
+++ b/bake-kdf/Cargo.toml
@@ -5,8 +5,8 @@ description = "bake-kdf function (STB 34.101.66-2014)"
 authors = ["RustCrypto Developers"]
 license = "MIT OR Apache-2.0"
 readme = "README.md"
-edition = "2021"
-rust-version = "1.72"
+edition = "2024"
+rust-version = "1.85"
 documentation = "https://docs.rs/bake-kdf"
 repository = "https://github.com/RustCrypto/KDFs"
 keywords = ["crypto", "bake", "stb", "kdf"]
diff --git a/bake-kdf/README.md b/bake-kdf/README.md
index bb044a3..0d5f625 100644
--- a/bake-kdf/README.md
+++ b/bake-kdf/README.md
@@ -35,6 +35,6 @@ assert_eq!(key, hex!("bbd7ece0080bee33c776a140f8d807a113a119a4e4d4270f9f2018fbd5
 [build-image]: https://github.com/RustCrypto/KDFs/actions/workflows/bake-kdf.yml/badge.svg
 [build-link]: https://github.com/RustCrypto/KDFs/actions/workflows/bake-kdf.yml
 [license-image]: https://img.shields.io/badge/license-Apache2.0/MIT-blue.svg
-[rustc-image]: https://img.shields.io/badge/rustc-1.41+-blue.svg
+[rustc-image]: https://img.shields.io/badge/rustc-1.85+-blue.svg
 [chat-image]: https://img.shields.io/badge/zulip-join_chat-blue.svg
 [chat-link]: https://rustcrypto.zulipchat.com/#narrow/stream/260043-KDFs

From da8eae98c8f0dc5bd5ed2cff5523f43953d28114 Mon Sep 17 00:00:00 2001
From: Arthur Gautier <arthur.gautier@arista.com>
Date: Tue, 25 Feb 2025 10:30:23 -0800
Subject: [PATCH 04/17] concat-kdf: bump to edition 2024; msrv 1.85

---
 .github/workflows/concat-kdf.yml | 4 ++--
 concat-kdf/Cargo.toml            | 6 +++---
 concat-kdf/README.md             | 9 +--------
 3 files changed, 6 insertions(+), 13 deletions(-)

diff --git a/.github/workflows/concat-kdf.yml b/.github/workflows/concat-kdf.yml
index 7f7d157..eb7faf1 100644
--- a/.github/workflows/concat-kdf.yml
+++ b/.github/workflows/concat-kdf.yml
@@ -22,7 +22,7 @@ jobs:
     strategy:
       matrix:
         rust:
-          - 1.81.0 # MSRV
+          - 1.85.0 # MSRV
           - stable
         target:
           - thumbv7em-none-eabi
@@ -40,7 +40,7 @@ jobs:
     strategy:
       matrix:
         rust:
-          - 1.81.0 # MSRV
+          - 1.85.0 # MSRV
           - stable
     steps:
       - uses: actions/checkout@v4
diff --git a/concat-kdf/Cargo.toml b/concat-kdf/Cargo.toml
index b7cf056..032a33b 100644
--- a/concat-kdf/Cargo.toml
+++ b/concat-kdf/Cargo.toml
@@ -5,15 +5,15 @@ description = "Concatenation Key Derivation Function (Concat KDF)"
 authors = ["RustCrypto Developers"]
 license = "MIT OR Apache-2.0"
 readme = "README.md"
-edition = "2021"
+edition = "2024"
 documentation = "https://docs.rs/concat-kdf"
 repository = "https://github.com/RustCrypto/KDFs"
 keywords = ["crypto", "concat-kdf", "KDF", "NIST"]
 categories = ["cryptography", "no-std"]
-rust-version = "1.81"
+rust-version = "1.85"
 
 [dependencies]
-digest = "=0.11.0-pre.9"
+digest = "=0.11.0-pre.10"
 
 [dev-dependencies]
 hex-literal = "0.4"
diff --git a/concat-kdf/README.md b/concat-kdf/README.md
index 6631a45..ad1d6e2 100644
--- a/concat-kdf/README.md
+++ b/concat-kdf/README.md
@@ -25,13 +25,6 @@ concat_kdf::derive_key_into::<Sha256>(b"secret", b"shared-info", &mut key).unwra
 assert_eq!(key, hex!("960db2c549ab16d71a7b008e005c2bdc"));
 ```
 
-## Minimum Supported Rust Version
-
-Rust **1.81** or higher.
-
-Minimum supported Rust version can be changed in the future, but it will be
-done with a minor version bump.
-
 ## SemVer Policy
 
 - All on-by-default features of this library are covered by SemVer
@@ -57,7 +50,7 @@ dual licensed as above, without any additional terms or conditions.
 [docs-image]: https://docs.rs/concat-kdf/badge.svg
 [docs-link]: https://docs.rs/concat-kdf/
 [license-image]: https://img.shields.io/badge/license-Apache2.0/MIT-blue.svg
-[rustc-image]: https://img.shields.io/badge/rustc-1.81+-blue.svg
+[rustc-image]: https://img.shields.io/badge/rustc-1.85+-blue.svg
 [chat-image]: https://img.shields.io/badge/zulip-join_chat-blue.svg
 [chat-link]: https://rustcrypto.zulipchat.com/#narrow/stream/260043-KDFs
 [build-image]: https://github.com/RustCrypto/KDFs/workflows/concat-kdf/badge.svg?branch=master&event=push

From ebc261d0ced567d1e29e2c3c27c19b76484b2cdc Mon Sep 17 00:00:00 2001
From: Arthur Gautier <arthur.gautier@arista.com>
Date: Tue, 25 Feb 2025 10:30:23 -0800
Subject: [PATCH 05/17] hkdf: bump to edition 2024; msrv 1.85

---
 .github/workflows/hkdf.yml | 4 ++--
 hkdf/Cargo.toml            | 4 ++--
 hkdf/README.md             | 9 +--------
 3 files changed, 5 insertions(+), 12 deletions(-)

diff --git a/.github/workflows/hkdf.yml b/.github/workflows/hkdf.yml
index cc2b93e..0108975 100644
--- a/.github/workflows/hkdf.yml
+++ b/.github/workflows/hkdf.yml
@@ -22,7 +22,7 @@ jobs:
     strategy:
       matrix:
         rust:
-          - 1.81.0 # MSRV
+          - 1.85.0 # MSRV
           - stable
         target:
           - thumbv7em-none-eabi
@@ -48,7 +48,7 @@ jobs:
     strategy:
       matrix:
         rust:
-          - 1.81.0 # MSRV
+          - 1.85.0 # MSRV
           - stable
     steps:
       - uses: actions/checkout@v4
diff --git a/hkdf/Cargo.toml b/hkdf/Cargo.toml
index 2347190..eab5804 100644
--- a/hkdf/Cargo.toml
+++ b/hkdf/Cargo.toml
@@ -9,8 +9,8 @@ description = "HMAC-based Extract-and-Expand Key Derivation Function (HKDF)"
 keywords = ["crypto", "HKDF", "KDF"]
 categories = ["cryptography", "no-std"]
 readme = "README.md"
-edition = "2021"
-rust-version = "1.81"
+edition = "2024"
+rust-version = "1.85"
 
 [dependencies]
 hmac = "=0.13.0-pre.4"
diff --git a/hkdf/README.md b/hkdf/README.md
index 50412c2..d52a51c 100644
--- a/hkdf/README.md
+++ b/hkdf/README.md
@@ -71,13 +71,6 @@ let expected = hex!("
 assert_eq!(okm, expected);
 ```
 
-## Minimum Supported Rust Version
-
-Rust **1.72** or higher.
-
-Minimum supported Rust version can be changed in the future, but it will be
-done with a minor version bump.
-
 ## SemVer Policy
 
 - All on-by-default features of this library are covered by SemVer
@@ -105,7 +98,7 @@ dual licensed as above, without any additional terms or conditions.
 [docs-image]: https://docs.rs/hkdf/badge.svg
 [docs-link]: https://docs.rs/hkdf/
 [license-image]: https://img.shields.io/badge/license-Apache2.0/MIT-blue.svg
-[rustc-image]: https://img.shields.io/badge/rustc-1.72+-blue.svg
+[rustc-image]: https://img.shields.io/badge/rustc-1.85+-blue.svg
 [chat-image]: https://img.shields.io/badge/zulip-join_chat-blue.svg
 [chat-link]: https://rustcrypto.zulipchat.com/#narrow/stream/260043-KDFs
 [build-image]: https://github.com/RustCrypto/KDFs/workflows/hkdf/badge.svg?branch=master&event=push

From 11a5a382b488d225a3c4022602a16edcca46e31b Mon Sep 17 00:00:00 2001
From: Arthur Gautier <arthur.gautier@arista.com>
Date: Tue, 25 Feb 2025 10:30:23 -0800
Subject: [PATCH 06/17] kbkdf: bump to edition 2024; msrv 1.85

---
 .github/workflows/kbkdf.yml |  4 ++--
 Cargo.lock                  | 48 ++++++++++++++++---------------------
 Cargo.toml                  |  3 +++
 kbkdf/Cargo.toml            | 10 ++++----
 kbkdf/README.md             |  9 +------
 kbkdf/tests/kbkdf/parser.rs |  8 +++----
 6 files changed, 36 insertions(+), 46 deletions(-)

diff --git a/.github/workflows/kbkdf.yml b/.github/workflows/kbkdf.yml
index e016b45..f426fcf 100644
--- a/.github/workflows/kbkdf.yml
+++ b/.github/workflows/kbkdf.yml
@@ -22,7 +22,7 @@ jobs:
     strategy:
       matrix:
         rust:
-          - 1.81.0 # MSRV
+          - 1.85.0 # MSRV
           - stable
         target:
           - thumbv7em-none-eabi
@@ -46,7 +46,7 @@ jobs:
     strategy:
       matrix:
         rust:
-          - 1.81.0 # MSRV
+          - 1.85.0 # MSRV
           - stable
     steps:
       - uses: actions/checkout@v4
diff --git a/Cargo.lock b/Cargo.lock
index d69711c..24fc96c 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1,12 +1,11 @@
 # This file is automatically @generated by Cargo.
 # It is not intended for manual editing.
-version = 3
+version = 4
 
 [[package]]
 name = "aes"
 version = "0.9.0-pre.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e7856582c758ade85d71daf27ec6bcea6c1c73913692b07b8dffea2dc03531c9"
+source = "git+https://github.com/RustCrypto/block-ciphers.git#bb7623cf85b416c8c61d89dd11573e6e7f961720"
 dependencies = [
  "cfg-if",
  "cipher",
@@ -39,8 +38,7 @@ checksum = "d9aa1eef3994e2ccd304a78fe3fea4a73e5792007f85f09b79bb82143ca5f82b"
 [[package]]
 name = "belt-hash"
 version = "0.2.0-pre.4"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ee5982dbf7d2f719b4237cd796ee600e9dcbef1eef460ece65380f9192a54ab5"
+source = "git+https://github.com/RustCrypto/hashes.git#0d0369ff7dab69e98acfb8a08f4724dbda285e04"
 dependencies = [
  "belt-block",
  "digest",
@@ -54,9 +52,9 @@ checksum = "847495c209977a90e8aad588b959d0ca9f5dc228096d29a6bd3defd53f35eaec"
 
 [[package]]
 name = "block-buffer"
-version = "0.11.0-rc.3"
+version = "0.11.0-rc.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3fd016a0ddc7cb13661bf5576073ce07330a693f8608a1320b4e20561cc12cdc"
+checksum = "a229bfd78e4827c91b9b95784f69492c1b77c1ab75a45a8a037b139215086f94"
 dependencies = [
  "hybrid-array",
 ]
@@ -69,9 +67,9 @@ checksum = "baf1de4339761588bc0619e3cbc0120ee582ebb74b53b4efbf79117bd2da40fd"
 
 [[package]]
 name = "cipher"
-version = "0.5.0-pre.7"
+version = "0.5.0-pre.8"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5b1425e6ce000f05a73096556cabcfb6a10a3ffe3bb4d75416ca8f00819c0b6a"
+checksum = "276974d2acb7cf592603150941fc1ff6442acdeb1dc653ac2825928f4703c131"
 dependencies = [
  "crypto-common",
  "inout",
@@ -80,8 +78,7 @@ dependencies = [
 [[package]]
 name = "cmac"
 version = "0.8.0-pre.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "02a53c8815f718726c448e4e83b86806245fb37bfaa82ad50893d9f01ad3a503"
+source = "git+https://github.com/RustCrypto/MACs.git#c7cbed0bd3f7026cc01251cd4602d0db4d0495b9"
 dependencies = [
  "cipher",
  "dbl",
@@ -108,27 +105,27 @@ dependencies = [
 
 [[package]]
 name = "crypto-common"
-version = "0.2.0-rc.1"
+version = "0.2.0-rc.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b0b8ce8218c97789f16356e7896b3714f26c2ee1079b79c0b7ae7064bb9089fa"
+checksum = "170d71b5b14dec99db7739f6fc7d6ec2db80b78c3acb77db48392ccc3d8a9ea0"
 dependencies = [
  "hybrid-array",
 ]
 
 [[package]]
 name = "dbl"
-version = "0.4.0-rc.1"
+version = "0.4.0-rc.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b317b5dd7fb52c79e017554049304992f65260689c5ddb55438ad52ba007f98d"
+checksum = "cb24c766034b76390c67f3d9c44e63019febeb4cc39e4ba40b5fc79e20c898e1"
 dependencies = [
  "hybrid-array",
 ]
 
 [[package]]
 name = "digest"
-version = "0.11.0-pre.9"
+version = "0.11.0-pre.10"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "cf2e3d6615d99707295a9673e889bf363a04b2a466bd320c65a72536f7577379"
+checksum = "6c478574b20020306f98d61c8ca3322d762e1ff08117422ac6106438605ea516"
 dependencies = [
  "block-buffer",
  "crypto-common",
@@ -161,26 +158,25 @@ dependencies = [
 [[package]]
 name = "hmac"
 version = "0.13.0-pre.4"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e4b1fb14e4df79f9406b434b60acef9f45c26c50062cccf1346c6103b8c47d58"
+source = "git+https://github.com/RustCrypto/MACs.git#c7cbed0bd3f7026cc01251cd4602d0db4d0495b9"
 dependencies = [
  "digest",
 ]
 
 [[package]]
 name = "hybrid-array"
-version = "0.2.3"
+version = "0.3.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f2d35805454dc9f8662a98d6d61886ffe26bd465f5960e0e55345c70d5c0d2a9"
+checksum = "4dab50e193aebe510fe0e40230145820e02f48dae0cf339ea4204e6e708ff7bd"
 dependencies = [
  "typenum",
 ]
 
 [[package]]
 name = "inout"
-version = "0.2.0-rc.3"
+version = "0.2.0-rc.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "de49db00f5add6dad75a57946b75de0f26287a6fc95f4f277d48419200422beb"
+checksum = "ac5e145e8ade9f74c0a5efc60ccb4e714b0144f7e2220b7ca64254feee71c57f"
 dependencies = [
  "hybrid-array",
 ]
@@ -208,8 +204,7 @@ checksum = "b5aba8db14291edd000dfcc4d620c7ebfb122c613afb886ca8803fa4e128a20a"
 [[package]]
 name = "sha1"
 version = "0.11.0-pre.4"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9540978cef7a8498211c1b1c14e5ce920fe5bd524ea84f4a3d72d4602515ae93"
+source = "git+https://github.com/RustCrypto/hashes.git#0d0369ff7dab69e98acfb8a08f4724dbda285e04"
 dependencies = [
  "cfg-if",
  "cpufeatures",
@@ -219,8 +214,7 @@ dependencies = [
 [[package]]
 name = "sha2"
 version = "0.11.0-pre.4"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "540c0893cce56cdbcfebcec191ec8e0f470dd1889b6e7a0b503e310a94a168f5"
+source = "git+https://github.com/RustCrypto/hashes.git#0d0369ff7dab69e98acfb8a08f4724dbda285e04"
 dependencies = [
  "cfg-if",
  "cpufeatures",
diff --git a/Cargo.toml b/Cargo.toml
index 83092cc..b193c88 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -18,3 +18,6 @@ sha2      = { git = "https://github.com/RustCrypto/hashes.git" }
 
 hmac = { git = "https://github.com/RustCrypto/MACs.git" }
 cmac = { git = "https://github.com/RustCrypto/MACs.git" }
+
+# https://github.com/RustCrypto/block-ciphers/pull/472
+aes = { git = "https://github.com/RustCrypto/block-ciphers.git" }
diff --git a/kbkdf/Cargo.toml b/kbkdf/Cargo.toml
index 6fb9df0..3a675cd 100644
--- a/kbkdf/Cargo.toml
+++ b/kbkdf/Cargo.toml
@@ -1,7 +1,7 @@
 [package]
 name = "kbkdf"
 version = "0.0.1"
-edition = "2021"
+edition = "2024"
 authors = ["RustCrypto Developers"]
 license = "MIT OR Apache-2.0"
 homepage = "https://github.com/RustCrypto/KDFs/tree/master/kbkdf"
@@ -10,18 +10,18 @@ description = "Key Derivation Using Pseudorandom Function (KBKDF)"
 keywords = ["crypto", "KBKDF", "KDF"]
 categories = ["cryptography", "no-std"]
 readme = "README.md"
-rust-version = "1.81"
+rust-version = "1.85"
 exclude = ["/tests/*"]
 
 [dependencies]
-digest = { version = "0.11.0-pre.9", default-features = false, features = ["mac"] }
+digest = { version = "0.11.0-pre.10", default-features = false, features = ["mac"] }
 
 [dev-dependencies]
 hex-literal = "0.4"
 hex = "0.4"
 hmac = { version = "0.13.0-pre.4", default-features = false }
-sha2 = { version = "0.11.0-pre.2", default-features = false }
-sha1 = { version = "0.11.0-pre.2", default-features = false }
+sha2 = { version = "0.11.0-pre.4", default-features = false }
+sha1 = { version = "0.11.0-pre.4", default-features = false }
 cmac = "0.8.0-pre.2"
 aes = "0.9.0-pre.2"
 
diff --git a/kbkdf/README.md b/kbkdf/README.md
index e9551f5..c915108 100644
--- a/kbkdf/README.md
+++ b/kbkdf/README.md
@@ -38,13 +38,6 @@ assert_eq!(
 );
 ```
 
-## Minimum Supported Rust Version
-
-Rust **1.81** or higher.
-
-Minimum supported Rust version can be changed in the future, but it will be
-done with a minor version bump.
-
 ## SemVer Policy
 
 - All on-by-default features of this library are covered by SemVer
@@ -72,7 +65,7 @@ dual licensed as above, without any additional terms or conditions.
 [build-image]: https://github.com/RustCrypto/KDFs/actions/workflows/kbkdf.yml/badge.svg
 [build-link]: https://github.com/RustCrypto/KDFs/actions/workflows/kbkdf.yml
 [license-image]: https://img.shields.io/badge/license-Apache2.0/MIT-blue.svg
-[rustc-image]: https://img.shields.io/badge/rustc-1.81+-blue.svg
+[rustc-image]: https://img.shields.io/badge/rustc-1.85+-blue.svg
 [chat-image]: https://img.shields.io/badge/zulip-join_chat-blue.svg
 [chat-link]: https://rustcrypto.zulipchat.com/#narrow/stream/260043-KDFs
 
diff --git a/kbkdf/tests/kbkdf/parser.rs b/kbkdf/tests/kbkdf/parser.rs
index ae730e0..29347b0 100644
--- a/kbkdf/tests/kbkdf/parser.rs
+++ b/kbkdf/tests/kbkdf/parser.rs
@@ -350,20 +350,20 @@ fn test_kbkdf<T: TestData>(test_data: T, prf: Prf, r_len: Rlen, use_counter: boo
         (@inner $prf_ty:ident : ; $($r_value:expr => $r_ty:ident,)*) => {};
     }
 
-    macro_rules! gen {
+    macro_rules! gen_test {
         ({ $($prf_value:expr => $prf_ty:ident,)* }, { $($l_value:expr => $l_ty:ident,)* }, { $($r_value:expr => $r_ty:ident,)* }) => {
-            gen!(@inner $($prf_value => $prf_ty,)* ; $($l_value => $l_ty,)* ; $($r_value => $r_ty,)*);
+            gen_test!(@inner $($prf_value => $prf_ty,)* ; $($l_value => $l_ty,)* ; $($r_value => $r_ty,)*);
         };
         (@inner $next_prf_value:expr => $next_prf_ty:ident, $($prf_value:expr => $prf_ty:ident,)* ; $($l_value:expr => $l_ty:ident,)* ; $($r_value:expr => $r_ty:ident,)*) => {
             if prf == $next_prf_value {
                 gen_inner!($next_prf_ty, { $($l_value => $l_ty,)* }, { $($r_value => $r_ty,)* });
             }
-            gen!(@inner $($prf_value => $prf_ty,)* ; $($l_value => $l_ty,)* ; $($r_value => $r_ty,)*);
+            gen_test!(@inner $($prf_value => $prf_ty,)* ; $($l_value => $l_ty,)* ; $($r_value => $r_ty,)*);
         };
         (@inner ; $($l_value:expr => $l_ty:ident,)* ; $($r_value:expr => $r_ty:ident,)*) => {};
     }
 
-    gen!({
+    gen_test!({
         Prf::CmacAes128 => CmacAes128,
         Prf::CmacAes192 => CmacAes192,
         Prf::CmacAes256 => CmacAes256,

From b759a15ff48c9602a8f2fb5515731229727998fc Mon Sep 17 00:00:00 2001
From: Arthur Gautier <arthur.gautier@arista.com>
Date: Tue, 25 Feb 2025 10:40:55 -0800
Subject: [PATCH 07/17] ansi-x963-kdf: reformat with edition 2024

---
 ansi-x963-kdf/src/lib.rs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/ansi-x963-kdf/src/lib.rs b/ansi-x963-kdf/src/lib.rs
index 6d0e7bc..9d9213b 100644
--- a/ansi-x963-kdf/src/lib.rs
+++ b/ansi-x963-kdf/src/lib.rs
@@ -2,7 +2,7 @@
 #![doc = include_str!("../README.md")]
 
 use core::fmt;
-use digest::{array::typenum::Unsigned, Digest, FixedOutputReset};
+use digest::{Digest, FixedOutputReset, array::typenum::Unsigned};
 
 /// Derives `key` in-place from `secret` and `shared_info`.
 ///

From 4432d605a9fed92f1a08f093b67e29c5b2343ebc Mon Sep 17 00:00:00 2001
From: Arthur Gautier <arthur.gautier@arista.com>
Date: Tue, 25 Feb 2025 10:40:55 -0800
Subject: [PATCH 08/17] bake-kdf: reformat with edition 2024

---
 bake-kdf/src/lib.rs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/bake-kdf/src/lib.rs b/bake-kdf/src/lib.rs
index 279b0ab..d72095d 100644
--- a/bake-kdf/src/lib.rs
+++ b/bake-kdf/src/lib.rs
@@ -10,7 +10,7 @@
 #![warn(missing_docs, rust_2018_idioms)]
 
 use belt_hash::digest::FixedOutput;
-use belt_hash::{belt_compress, BeltHash, Digest};
+use belt_hash::{BeltHash, Digest, belt_compress};
 
 /// `belt-keyexpand` key expansion algorithm described in STB 34.101.34-2020 8.1.2.
 ///

From df5dcbdb60950eb0cc93881a1b7b57ee68cd182d Mon Sep 17 00:00:00 2001
From: Arthur Gautier <arthur.gautier@arista.com>
Date: Tue, 25 Feb 2025 10:40:55 -0800
Subject: [PATCH 09/17] concat-kdf: reformat with edition 2024

---
 concat-kdf/src/lib.rs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/concat-kdf/src/lib.rs b/concat-kdf/src/lib.rs
index a355bed..b2347f0 100644
--- a/concat-kdf/src/lib.rs
+++ b/concat-kdf/src/lib.rs
@@ -2,7 +2,7 @@
 #![doc = include_str!("../README.md")]
 
 use core::fmt;
-use digest::{array::typenum::Unsigned, Digest, FixedOutputReset, Update};
+use digest::{Digest, FixedOutputReset, Update, array::typenum::Unsigned};
 
 /// Derives `key` in-place from `secret` and `other_info`.
 ///

From ce5bc89001d2a2a51b6dc4d5164aed11fe922f37 Mon Sep 17 00:00:00 2001
From: Arthur Gautier <arthur.gautier@arista.com>
Date: Tue, 25 Feb 2025 10:40:55 -0800
Subject: [PATCH 10/17] hkdf: reformat with edition 2024

---
 hkdf/src/lib.rs          | 2 +-
 hkdf/src/sealed.rs       | 2 +-
 hkdf/tests/rfc5869.rs    | 4 ++--
 hkdf/tests/wycheproof.rs | 2 +-
 4 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/hkdf/src/lib.rs b/hkdf/src/lib.rs
index 7ae9056..d3e17f1 100644
--- a/hkdf/src/lib.rs
+++ b/hkdf/src/lib.rs
@@ -100,7 +100,7 @@ pub use hmac;
 use core::fmt;
 use core::marker::PhantomData;
 use hmac::digest::{
-    array::typenum::Unsigned, crypto_common::AlgorithmName, Output, OutputSizeUser,
+    Output, OutputSizeUser, array::typenum::Unsigned, crypto_common::AlgorithmName,
 };
 use hmac::{Hmac, SimpleHmac};
 
diff --git a/hkdf/src/sealed.rs b/hkdf/src/sealed.rs
index 1895762..e1d02f7 100644
--- a/hkdf/src/sealed.rs
+++ b/hkdf/src/sealed.rs
@@ -1,6 +1,6 @@
 use hmac::digest::{
-    core_api::{BlockSizeUser, CoreWrapper, OutputSizeUser},
     Digest, FixedOutput, KeyInit, Output, Update,
+    core_api::{BlockSizeUser, CoreWrapper, OutputSizeUser},
 };
 use hmac::{EagerHash, Hmac, HmacCore, SimpleHmac};
 
diff --git a/hkdf/tests/rfc5869.rs b/hkdf/tests/rfc5869.rs
index f4bd8d9..bef7699 100644
--- a/hkdf/tests/rfc5869.rs
+++ b/hkdf/tests/rfc5869.rs
@@ -1,7 +1,7 @@
 use hex_literal::hex;
-use hkdf::{hmac::EagerHash, Hkdf};
+use hkdf::{Hkdf, hmac::EagerHash};
 use sha1::Sha1;
-use sha2::{digest::OutputSizeUser, Sha256};
+use sha2::{Sha256, digest::OutputSizeUser};
 
 struct Test<'a> {
     ikm: &'a [u8],
diff --git a/hkdf/tests/wycheproof.rs b/hkdf/tests/wycheproof.rs
index d7b45fe..30cddca 100644
--- a/hkdf/tests/wycheproof.rs
+++ b/hkdf/tests/wycheproof.rs
@@ -2,7 +2,7 @@ use blobby::Blob4Iterator;
 use hkdf::{Hkdf, HmacImpl};
 use hmac::{Hmac, SimpleHmac};
 use sha1::Sha1;
-use sha2::{digest::OutputSizeUser, Sha256, Sha384, Sha512};
+use sha2::{Sha256, Sha384, Sha512, digest::OutputSizeUser};
 
 fn test<H: OutputSizeUser, I: HmacImpl<H>>(data: &[u8]) {
     for (i, row) in Blob4Iterator::new(data).unwrap().enumerate() {

From 72147ee475a9040128bc76094a3b11b1821d9ef1 Mon Sep 17 00:00:00 2001
From: Arthur Gautier <arthur.gautier@arista.com>
Date: Tue, 25 Feb 2025 10:40:55 -0800
Subject: [PATCH 11/17] kbkdf: reformat with edition 2024

---
 kbkdf/src/lib.rs            | 6 +++---
 kbkdf/src/sealed.rs         | 4 ++--
 kbkdf/tests/kbkdf/parser.rs | 4 ++--
 3 files changed, 7 insertions(+), 7 deletions(-)

diff --git a/kbkdf/src/lib.rs b/kbkdf/src/lib.rs
index 68fc9d4..02e1623 100644
--- a/kbkdf/src/lib.rs
+++ b/kbkdf/src/lib.rs
@@ -3,11 +3,11 @@
 
 use core::{fmt, marker::PhantomData, ops::Mul};
 use digest::{
-    array::{typenum::Unsigned, Array, ArraySize},
-    consts::{U32, U8},
+    KeyInit, Mac,
+    array::{Array, ArraySize, typenum::Unsigned},
+    consts::{U8, U32},
     crypto_common::KeySizeUser,
     typenum::op,
-    KeyInit, Mac,
 };
 
 pub mod sealed;
diff --git a/kbkdf/src/sealed.rs b/kbkdf/src/sealed.rs
index d4e94d2..6dc1cbb 100644
--- a/kbkdf/src/sealed.rs
+++ b/kbkdf/src/sealed.rs
@@ -1,10 +1,10 @@
 use digest::{
     array::typenum::Unsigned,
-    consts::{U16, U24, U32, U8},
+    consts::{U8, U16, U24, U32},
 };
 
 mod private {
-    use digest::consts::{U16, U24, U32, U8};
+    use digest::consts::{U8, U16, U24, U32};
 
     pub trait Sealed {}
 
diff --git a/kbkdf/tests/kbkdf/parser.rs b/kbkdf/tests/kbkdf/parser.rs
index 29347b0..554f762 100644
--- a/kbkdf/tests/kbkdf/parser.rs
+++ b/kbkdf/tests/kbkdf/parser.rs
@@ -4,9 +4,9 @@ use kbkdf::{Kbkdf, Params};
 
 use core::{convert::TryInto, ops::Mul};
 use digest::{
-    array::{typenum::Unsigned, ArraySize},
-    crypto_common::KeySizeUser,
     KeyInit, Mac,
+    array::{ArraySize, typenum::Unsigned},
+    crypto_common::KeySizeUser,
 };
 
 use crate::*;

From 2327bb00097d3bbf22fe8773026082e20afaba6a Mon Sep 17 00:00:00 2001
From: Arthur Gautier <arthur.gautier@arista.com>
Date: Tue, 25 Feb 2025 10:42:43 -0800
Subject: [PATCH 12/17] chore(deps): bump `hex-literal` from `0.4` to `1`

---
 Cargo.lock               | 4 ++--
 ansi-x963-kdf/Cargo.toml | 2 +-
 bake-kdf/Cargo.toml      | 2 +-
 concat-kdf/Cargo.toml    | 2 +-
 hkdf/Cargo.toml          | 2 +-
 kbkdf/Cargo.toml         | 2 +-
 6 files changed, 7 insertions(+), 7 deletions(-)

diff --git a/Cargo.lock b/Cargo.lock
index 24fc96c..96b2547 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -140,9 +140,9 @@ checksum = "7f24254aa9a54b5c858eaee2f5bccdb46aaf0e486a595ed5fd8f86ba55232a70"
 
 [[package]]
 name = "hex-literal"
-version = "0.4.1"
+version = "1.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6fe2267d4ed49bc07b63801559be28c718ea06c4738b7a03c94df7386d2cde46"
+checksum = "bcaaec4551594c969335c98c903c1397853d4198408ea609190f420500f6be71"
 
 [[package]]
 name = "hkdf"
diff --git a/ansi-x963-kdf/Cargo.toml b/ansi-x963-kdf/Cargo.toml
index 6e80748..ca15beb 100644
--- a/ansi-x963-kdf/Cargo.toml
+++ b/ansi-x963-kdf/Cargo.toml
@@ -16,5 +16,5 @@ rust-version = "1.85"
 digest = "=0.11.0-pre.10"
 
 [dev-dependencies]
-hex-literal = "0.4"
+hex-literal = "1"
 sha2 = { version = "=0.11.0-pre.4", default-features = false }
diff --git a/bake-kdf/Cargo.toml b/bake-kdf/Cargo.toml
index 5d703bc..ab28574 100644
--- a/bake-kdf/Cargo.toml
+++ b/bake-kdf/Cargo.toml
@@ -16,7 +16,7 @@ categories = ["cryptography", "no-std"]
 belt-hash = { version = "0.2.0-pre.4", default-features = false }
 
 [dev-dependencies]
-hex-literal = "0.4.1"
+hex-literal = "1"
 
 [package.metadata.docs.rs]
 all-features = true
diff --git a/concat-kdf/Cargo.toml b/concat-kdf/Cargo.toml
index 032a33b..261f099 100644
--- a/concat-kdf/Cargo.toml
+++ b/concat-kdf/Cargo.toml
@@ -16,5 +16,5 @@ rust-version = "1.85"
 digest = "=0.11.0-pre.10"
 
 [dev-dependencies]
-hex-literal = "0.4"
+hex-literal = "1"
 sha2 = { version = "=0.11.0-pre.4", default-features = false }
diff --git a/hkdf/Cargo.toml b/hkdf/Cargo.toml
index eab5804..0734522 100644
--- a/hkdf/Cargo.toml
+++ b/hkdf/Cargo.toml
@@ -17,7 +17,7 @@ hmac = "=0.13.0-pre.4"
 
 [dev-dependencies]
 blobby = "0.3"
-hex-literal = "0.4"
+hex-literal = "1"
 sha1 = { version = "=0.11.0-pre.4", default-features = false }
 sha2 = { version = "=0.11.0-pre.4", default-features = false }
 
diff --git a/kbkdf/Cargo.toml b/kbkdf/Cargo.toml
index 3a675cd..98c1ed5 100644
--- a/kbkdf/Cargo.toml
+++ b/kbkdf/Cargo.toml
@@ -17,7 +17,7 @@ exclude = ["/tests/*"]
 digest = { version = "0.11.0-pre.10", default-features = false, features = ["mac"] }
 
 [dev-dependencies]
-hex-literal = "0.4"
+hex-literal = "1"
 hex = "0.4"
 hmac = { version = "0.13.0-pre.4", default-features = false }
 sha2 = { version = "0.11.0-pre.4", default-features = false }

From 49fe65ef42c4e00334908b3242e845e2b2f2944e Mon Sep 17 00:00:00 2001
From: Arthur Gautier <arthur.gautier@arista.com>
Date: Tue, 25 Feb 2025 13:42:54 -0800
Subject: [PATCH 13/17] kbkdf: disable temporarily minimal-versions

---
 .github/workflows/kbkdf.yml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/.github/workflows/kbkdf.yml b/.github/workflows/kbkdf.yml
index f426fcf..8c609f3 100644
--- a/.github/workflows/kbkdf.yml
+++ b/.github/workflows/kbkdf.yml
@@ -37,6 +37,7 @@ jobs:
       - run: cargo build --no-default-features --target ${{ matrix.target }}
 
   minimal-versions:
+    if: false # Disabled because it can't handle git dependencies use to upgrade ecosystem
     uses: RustCrypto/actions/.github/workflows/minimal-versions.yml@master
     with:
         working-directory: ${{ github.workflow }}

From 355c0ecbee3c7b45652869f6344f8f4846790abe Mon Sep 17 00:00:00 2001
From: Arthur Gautier <arthur.gautier@arista.com>
Date: Tue, 25 Feb 2025 13:43:18 -0800
Subject: [PATCH 14/17] kbkdf: clippy 1.85

---
 kbkdf/src/lib.rs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kbkdf/src/lib.rs b/kbkdf/src/lib.rs
index 02e1623..b5e1a42 100644
--- a/kbkdf/src/lib.rs
+++ b/kbkdf/src/lib.rs
@@ -273,7 +273,7 @@ where
     }
 }
 
-impl<'a, Prf, K, R> Kbkdf<Prf, K, R> for Feedback<'a, Prf, K, R>
+impl<Prf, K, R> Kbkdf<Prf, K, R> for Feedback<'_, Prf, K, R>
 where
     Prf: Mac + KeyInit,
     K: KeySizeUser,

From 456b9187e1bedf8687cbc58834c87083a92d6db2 Mon Sep 17 00:00:00 2001
From: Arthur Gautier <arthur.gautier@arista.com>
Date: Fri, 28 Feb 2025 09:09:11 -0800
Subject: [PATCH 15/17] Rmove SemVer policy

---
 ansi-x963-kdf/README.md | 5 -----
 concat-kdf/README.md    | 5 -----
 hkdf/README.md          | 5 -----
 kbkdf/README.md         | 5 -----
 4 files changed, 20 deletions(-)

diff --git a/ansi-x963-kdf/README.md b/ansi-x963-kdf/README.md
index 8f38d07..392789b 100644
--- a/ansi-x963-kdf/README.md
+++ b/ansi-x963-kdf/README.md
@@ -24,11 +24,6 @@ ansi_x963_kdf::derive_key_into::<Sha256>(b"secret", b"shared-info", &mut key).un
 assert_eq!(key, hex!("8dbb1d50bcc7fc782abc9db5c64a2826"));
 ```
 
-## SemVer Policy
-
-- All on-by-default features of this library are covered by SemVer
-- MSRV is considered exempt from SemVer as noted above
-
 ## License
 
 Licensed under either of:
diff --git a/concat-kdf/README.md b/concat-kdf/README.md
index ad1d6e2..e105aad 100644
--- a/concat-kdf/README.md
+++ b/concat-kdf/README.md
@@ -25,11 +25,6 @@ concat_kdf::derive_key_into::<Sha256>(b"secret", b"shared-info", &mut key).unwra
 assert_eq!(key, hex!("960db2c549ab16d71a7b008e005c2bdc"));
 ```
 
-## SemVer Policy
-
-- All on-by-default features of this library are covered by SemVer
-- MSRV is considered exempt from SemVer as noted above
-
 ## License
 
 Licensed under either of:
diff --git a/hkdf/README.md b/hkdf/README.md
index d52a51c..cc95cec 100644
--- a/hkdf/README.md
+++ b/hkdf/README.md
@@ -71,11 +71,6 @@ let expected = hex!("
 assert_eq!(okm, expected);
 ```
 
-## SemVer Policy
-
-- All on-by-default features of this library are covered by SemVer
-- MSRV is considered exempt from SemVer as noted above
-
 ## License
 
 Licensed under either of:
diff --git a/kbkdf/README.md b/kbkdf/README.md
index c915108..f071a98 100644
--- a/kbkdf/README.md
+++ b/kbkdf/README.md
@@ -38,11 +38,6 @@ assert_eq!(
 );
 ```
 
-## SemVer Policy
-
-- All on-by-default features of this library are covered by SemVer
-- MSRV is considered exempt from SemVer as noted above
-
 ## License
 
 Licensed under either of:

From 863f3768bd8a93b67e3804499fcc27ec7246e357 Mon Sep 17 00:00:00 2001
From: Arthur Gautier <arthur.gautier@arista.com>
Date: Fri, 28 Feb 2025 09:10:46 -0800
Subject: [PATCH 16/17] bake-kdf: add licensing info

---
 bake-kdf/README.md | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/bake-kdf/README.md b/bake-kdf/README.md
index 0d5f625..8149ce3 100644
--- a/bake-kdf/README.md
+++ b/bake-kdf/README.md
@@ -25,6 +25,21 @@ let key = bake_kdf(&x, &s, c);
 assert_eq!(key, hex!("bbd7ece0080bee33c776a140f8d807a113a119a4e4d4270f9f2018fbd5e6292e"));
 ```
 
+## License
+
+Licensed under either of:
+
+* [Apache License, Version 2.0](http://www.apache.org/licenses/LICENSE-2.0)
+* [MIT license](http://opensource.org/licenses/MIT)
+
+at your option.
+
+### Contribution
+
+Unless you explicitly state otherwise, any contribution intentionally submitted
+for inclusion in the work by you, as defined in the Apache-2.0 license, shall be
+dual licensed as above, without any additional terms or conditions.
+
 
 [//]: # (badges)
 

From db14dcbfe9f98d3d9c863d437e1c9b1d45f47fd9 Mon Sep 17 00:00:00 2001
From: Arthur Gautier <arthur.gautier@arista.com>
Date: Fri, 28 Feb 2025 09:11:14 -0800
Subject: [PATCH 17/17] chore(deps): bump blobby to `0.4`

---
 Cargo.lock      | 4 ++--
 hkdf/Cargo.toml | 2 +-
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/Cargo.lock b/Cargo.lock
index 96b2547..114041f 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -46,9 +46,9 @@ dependencies = [
 
 [[package]]
 name = "blobby"
-version = "0.3.1"
+version = "0.4.0-pre.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "847495c209977a90e8aad588b959d0ca9f5dc228096d29a6bd3defd53f35eaec"
+checksum = "4a859067dcb257cb2ae028cb821399b55140b76fb8b2a360e052fe109019db43"
 
 [[package]]
 name = "block-buffer"
diff --git a/hkdf/Cargo.toml b/hkdf/Cargo.toml
index 0734522..f8d4995 100644
--- a/hkdf/Cargo.toml
+++ b/hkdf/Cargo.toml
@@ -16,7 +16,7 @@ rust-version = "1.85"
 hmac = "=0.13.0-pre.4"
 
 [dev-dependencies]
-blobby = "0.3"
+blobby = "=0.4.0-pre.0"
 hex-literal = "1"
 sha1 = { version = "=0.11.0-pre.4", default-features = false }
 sha2 = { version = "=0.11.0-pre.4", default-features = false }