diff --git a/Cargo.lock b/Cargo.lock
index 7c3661c543..a6daeaf5ea 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -103,7 +103,7 @@ dependencies = [
  "ark-std",
  "blake2",
  "derivative",
- "digest",
+ "digest 0.9.0",
  "rayon",
  "tracing",
 ]
@@ -276,7 +276,7 @@ checksum = "1d6c2b318ee6e10f8c2853e73a83adc0ccb88995aa978d8a3408d492ab2ee671"
 dependencies = [
  "ark-serialize-derive",
  "ark-std",
- "digest",
+ "digest 0.9.0",
 ]
 
 [[package]]
@@ -314,7 +314,7 @@ dependencies = [
  "ark-serialize",
  "ark-std",
  "derivative",
- "digest",
+ "digest 0.9.0",
  "rand_chacha 0.3.1",
  "tracing",
 ]
@@ -650,7 +650,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "0a4e37d16930f5459780f5621038b6382b9bb37c19016f39fb6b5808d831f174"
 dependencies = [
  "crypto-mac",
- "digest",
+ "digest 0.9.0",
  "opaque-debug",
 ]
 
@@ -685,6 +685,15 @@ dependencies = [
  "generic-array",
 ]
 
+[[package]]
+name = "block-buffer"
+version = "0.10.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0bf7fe51849ea569fd452f37822f606a5cabb684dc918707a0193fd4664ff324"
+dependencies = [
+ "generic-array",
+]
+
 [[package]]
 name = "block-padding"
 version = "0.2.1"
@@ -971,6 +980,15 @@ version = "0.2.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "7a81dae078cea95a014a339291cec439d2f232ebe854a9d672b796c6afafa9b7"
 
+[[package]]
+name = "crypto-common"
+version = "0.1.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a4600d695eb3f6ce1cd44e6e291adceb2cc3ab12f20a33777ecd0bf6eba34e06"
+dependencies = [
+ "generic-array",
+]
+
 [[package]]
 name = "crypto-mac"
 version = "0.8.0"
@@ -1028,7 +1046,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "0b9fdf9972b2bd6af2d913799d9ebc165ea4d2e65878e329d9c6b372c4491b61"
 dependencies = [
  "byteorder",
- "digest",
+ "digest 0.9.0",
  "rand_core 0.5.1",
  "subtle",
  "zeroize",
@@ -1243,6 +1261,16 @@ dependencies = [
  "generic-array",
 ]
 
+[[package]]
+name = "digest"
+version = "0.10.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8cb780dce4f9a8f5c087362b3a4595936b2019e7c8b30f2c3e9a7e94e6ae9837"
+dependencies = [
+ "block-buffer 0.10.2",
+ "crypto-common",
+]
+
 [[package]]
 name = "directories"
 version = "4.0.1"
@@ -1304,7 +1332,7 @@ dependencies = [
  "ed25519",
  "rand 0.7.3",
  "serde",
- "sha2",
+ "sha2 0.9.9",
  "zeroize",
 ]
 
@@ -1317,7 +1345,7 @@ dependencies = [
  "hex",
  "rand_core 0.6.3",
  "serde",
- "sha2",
+ "sha2 0.9.9",
  "thiserror",
  "zeroize",
 ]
@@ -1744,7 +1772,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "126888268dcc288495a26bf004b38c5fdbb31682f992c84ceb046a1f0fe38840"
 dependencies = [
  "crypto-mac",
- "digest",
+ "digest 0.9.0",
 ]
 
 [[package]]
@@ -1753,7 +1781,7 @@ version = "0.3.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "17ea0a1394df5b6574da6e0c1ade9e78868c9fb0a4e5ef4428e32da4676b85b1"
 dependencies = [
- "digest",
+ "digest 0.9.0",
  "generic-array",
  "hmac",
 ]
@@ -2116,7 +2144,7 @@ dependencies = [
  "rand 0.8.4",
  "ring",
  "rw-stream-sink",
- "sha2",
+ "sha2 0.9.9",
  "smallvec",
  "thiserror",
  "unsigned-varint",
@@ -2191,7 +2219,7 @@ dependencies = [
  "prost-build",
  "rand 0.7.3",
  "regex",
- "sha2",
+ "sha2 0.9.9",
  "smallvec",
  "unsigned-varint",
 ]
@@ -2233,7 +2261,7 @@ dependencies = [
  "prost",
  "prost-build",
  "rand 0.7.3",
- "sha2",
+ "sha2 0.9.9",
  "smallvec",
  "uint",
  "unsigned-varint",
@@ -2309,7 +2337,7 @@ dependencies = [
  "prost",
  "prost-build",
  "rand 0.8.4",
- "sha2",
+ "sha2 0.9.9",
  "snow",
  "static_assertions",
  "x25519-dalek",
@@ -2403,7 +2431,7 @@ dependencies = [
  "prost",
  "prost-build",
  "rand 0.8.4",
- "sha2",
+ "sha2 0.9.9",
  "thiserror",
  "unsigned-varint",
  "void",
@@ -2539,14 +2567,14 @@ checksum = "b0452aac8bab02242429380e9b2f94ea20cea2b37e2c1777a1358799bbe97f37"
 dependencies = [
  "arrayref",
  "base64 0.13.0",
- "digest",
+ "digest 0.9.0",
  "hmac-drbg",
  "libsecp256k1-core",
  "libsecp256k1-gen-ecmult",
  "libsecp256k1-gen-genmult",
  "rand 0.8.4",
  "serde",
- "sha2",
+ "sha2 0.9.9",
  "typenum",
 ]
 
@@ -2557,7 +2585,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "5be9b9bb642d8522a44d533eab56c16c738301965504753b03ad1de3425d5451"
 dependencies = [
  "crunchy",
- "digest",
+ "digest 0.9.0",
  "subtle",
 ]
 
@@ -2764,10 +2792,10 @@ version = "0.14.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "752a61cd890ff691b4411423d23816d5866dd5621e4d1c5687a53b94b5a979d8"
 dependencies = [
- "digest",
+ "digest 0.9.0",
  "generic-array",
  "multihash-derive",
- "sha2",
+ "sha2 0.9.9",
  "unsigned-varint",
 ]
 
@@ -3150,7 +3178,7 @@ dependencies = [
  "nimiq-mmr",
  "rust-argon2",
  "serde",
- "sha2",
+ "sha2 0.10.1",
 ]
 
 [[package]]
@@ -3256,7 +3284,7 @@ dependencies = [
  "rand 0.8.4",
  "rand_core 0.6.3",
  "serde",
- "sha2",
+ "sha2 0.10.1",
  "thiserror",
 ]
 
@@ -3902,7 +3930,7 @@ dependencies = [
  "rand 0.8.4",
  "serde",
  "serde-big-array",
- "sha2",
+ "sha2 0.10.1",
 ]
 
 [[package]]
@@ -5078,10 +5106,10 @@ version = "0.9.8"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "99cd6713db3cf16b6c84e06321e049a9b9f699826e16096d23bbcc44d15d51a6"
 dependencies = [
- "block-buffer",
+ "block-buffer 0.9.0",
  "cfg-if",
  "cpufeatures",
- "digest",
+ "digest 0.9.0",
  "opaque-debug",
 ]
 
@@ -5091,21 +5119,32 @@ version = "0.9.9"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "4d58a1e1bf39749807d89cf2d98ac2dfa0ff1cb3faa38fbb64dd88ac8013d800"
 dependencies = [
- "block-buffer",
+ "block-buffer 0.9.0",
  "cfg-if",
  "cpufeatures",
- "digest",
+ "digest 0.9.0",
  "opaque-debug",
 ]
 
+[[package]]
+name = "sha2"
+version = "0.10.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "99c3bd8169c58782adad9290a9af5939994036b76187f7b4f0e6de91dbbfc0ec"
+dependencies = [
+ "cfg-if",
+ "cpufeatures",
+ "digest 0.10.2",
+]
+
 [[package]]
 name = "sha3"
 version = "0.9.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "f81199417d4e5de3f04b1e871023acea7389672c4135918f05aa9cbf2f2fa809"
 dependencies = [
- "block-buffer",
- "digest",
+ "block-buffer 0.9.0",
+ "digest 0.9.0",
  "keccak",
  "opaque-debug",
 ]
@@ -5215,7 +5254,7 @@ dependencies = [
  "rand_core 0.6.3",
  "ring",
  "rustc_version 0.3.3",
- "sha2",
+ "sha2 0.9.9",
  "subtle",
  "x25519-dalek",
 ]
diff --git a/hash/Cargo.toml b/hash/Cargo.toml
index 9ad726e8f3..5dcae75021 100644
--- a/hash/Cargo.toml
+++ b/hash/Cargo.toml
@@ -21,7 +21,7 @@ blake2-rfc = "0.2"
 rust-argon2 = "1.0"
 byteorder = "1.2"
 hex = "0.4"
-sha2 = "0.9"
+sha2 = "0.10"
 serde = { version = "1.0", features = ["derive"], optional = true }
 
 beserial = { path = "../beserial" }
diff --git a/keys/Cargo.toml b/keys/Cargo.toml
index 1a2f3a1823..6651ced34d 100644
--- a/keys/Cargo.toml
+++ b/keys/Cargo.toml
@@ -24,7 +24,7 @@ thiserror = "1.0"
 hex = "0.4"
 rand_core = "0.6"
 rand = "0.8"
-sha2 = "0.9"
+sha2 = "0.10"
 serde = { version = "1.0", optional = true }
 
 beserial = { path = "../beserial" }
diff --git a/vrf/Cargo.toml b/vrf/Cargo.toml
index e5e75baf66..677db1798b 100644
--- a/vrf/Cargo.toml
+++ b/vrf/Cargo.toml
@@ -18,7 +18,7 @@ num-traits = "0.2"
 rand = "0.8"
 serde = { version = "1.0", features = ["derive"], optional = true }
 serde-big-array = { version = "0.3.2", optional = true }
-sha2 = "0.9"
+sha2 = "0.10"
 
 beserial = { path = "../beserial" }
 nimiq-hash = { path = "../hash" }