diff --git a/Cargo.lock b/Cargo.lock
index 7b570fcb1..9614e0451 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -135,6 +135,15 @@ dependencies = [
  "typenum",
 ]
 
+[[package]]
+name = "crypto-common"
+version = "0.2.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ce6e4c961d6cd6c9a86db418387425e8bdeaf05b3c8bc1411e6dca4c252f1453"
+dependencies = [
+ "hybrid-array",
+]
+
 [[package]]
 name = "curve25519-dalek"
 version = "4.1.3"
@@ -144,7 +153,7 @@ dependencies = [
  "cfg-if",
  "cpufeatures 0.2.17",
  "curve25519-dalek-derive",
- "digest",
+ "digest 0.10.7",
  "fiat-crypto",
  "rustc_version",
  "subtle",
@@ -220,7 +229,16 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "9ed9a281f7bc9b7576e61468ba615a66a5c8cfdff42420a70aa82701a3b1e292"
 dependencies = [
  "block-buffer",
- "crypto-common",
+ "crypto-common 0.1.7",
+]
+
+[[package]]
+name = "digest"
+version = "0.11.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f1dd6dbb5841937940781866fa1281a1ff7bd3bf827091440879f9994983d5c2"
+dependencies = [
+ "crypto-common 0.2.2",
 ]
 
 [[package]]
@@ -312,13 +330,23 @@ version = "0.4.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "6fe2267d4ed49bc07b63801559be28c718ea06c4738b7a03c94df7386d2cde46"
 
+[[package]]
+name = "hybrid-array"
+version = "0.4.15"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "27f864f10dfb56725ce5ce5472bc52252c8f93a4ab86327122cebf62c5f59a17"
+dependencies = [
+ "typenum",
+]
+
 [[package]]
 name = "keccak"
-version = "0.1.6"
+version = "0.2.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "cb26cec98cce3a3d96cbb7bced3c4b16e3d13f27ec56dbd62cbc8f39cfb9d653"
+checksum = "d8f198d1db720e4940b5a493201d199d9f24f568f8f746bd13706243a2f71598"
 dependencies = [
- "cpufeatures 0.2.17",
+ "cfg-if",
+ "cpufeatures 0.3.0",
 ]
 
 [[package]]
@@ -525,17 +553,18 @@ checksum = "a7507d819769d01a365ab707794a4084392c824f54a7a6a7862f8c3d0892b283"
 dependencies = [
  "cfg-if",
  "cpufeatures 0.2.17",
- "digest",
+ "digest 0.10.7",
 ]
 
 [[package]]
 name = "sha3"
-version = "0.10.9"
+version = "0.12.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "77fd7028345d415a4034cf8777cd4f8ab1851274233b45f84e3d955502d93874"
+checksum = "bc9bad02c26382724b2d2692c6f179285e4b54eeecd7968f52a50059c3c11759"
 dependencies = [
- "digest",
+ "digest 0.11.3",
  "keccak",
+ "sponge-cursor",
 ]
 
 [[package]]
@@ -595,6 +624,12 @@ dependencies = [
  "der",
 ]
 
+[[package]]
+name = "sponge-cursor"
+version = "0.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3a0219bd7d979d58245a4f41f695e1ac9f8befdffadd7f61f1bae9e39abc6620"
+
 [[package]]
 name = "stable_deref_trait"
 version = "1.2.1"
diff --git a/Cargo.toml b/Cargo.toml
index be62fb7a3..f6139a499 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -870,7 +870,7 @@ heapless = { version = "0.8",  default-features = false }
 ed25519-dalek    = { version = "2.1.1", default-features = false, features = ["alloc", "zeroize"], optional = true }
 curve25519-dalek = { version = "4.1.3", default-features = false, features = ["alloc", "zeroize"], optional = true }
 x25519-dalek     = { version = "2",     default-features = false, features = ["static_secrets"], optional = true }
-sha3             = { version = "0.10",  default-features = false, optional = true }
+sha3             = { version = "0.12",  default-features = false, optional = true }
 
 # Hashing.
 blake3 = { version = "1.0",  default-features = false }