diff --git a/Cargo.lock b/Cargo.lock
index 7e6f6123422e..c17e1998ca8b 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1352,6 +1352,19 @@ dependencies = [
  "zeroize",
 ]
 
+[[package]]
+name = "curve25519-dalek-ng"
+version = "4.1.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1c359b7249347e46fb28804470d071c921156ad62b3eef5d34e2ba867533dec8"
+dependencies = [
+ "byteorder",
+ "digest 0.9.0",
+ "rand_core 0.6.3",
+ "subtle-ng",
+ "zeroize",
+]
+
 [[package]]
 name = "data-encoding"
 version = "2.3.2"
@@ -4251,6 +4264,18 @@ dependencies = [
  "zeroize",
 ]
 
+[[package]]
+name = "merlin"
+version = "3.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "58c38e2799fc0978b65dfff8023ec7843e2330bb462f19198840b34b6582397d"
+dependencies = [
+ "byteorder",
+ "keccak",
+ "rand_core 0.6.3",
+ "zeroize",
+]
+
 [[package]]
 name = "mick-jaeger"
 version = "0.1.8"
@@ -6155,7 +6180,7 @@ dependencies = [
  "rand 0.8.5",
  "rand_chacha 0.3.1",
  "rand_core 0.5.1",
- "schnorrkel",
+ "schnorrkel 0.10.2",
  "sp-authority-discovery",
  "sp-core",
  "tracing-gum",
@@ -6486,7 +6511,7 @@ dependencies = [
  "kvdb",
  "kvdb-memorydb",
  "lru 0.8.0",
- "merlin",
+ "merlin 2.0.1",
  "parity-scale-codec",
  "parking_lot 0.12.1",
  "polkadot-node-jaeger",
@@ -6499,7 +6524,7 @@ dependencies = [
  "polkadot-primitives-test-helpers",
  "rand_core 0.5.1",
  "sc-keystore",
- "schnorrkel",
+ "schnorrkel 0.10.2",
  "sp-application-crypto",
  "sp-consensus",
  "sp-consensus-babe",
@@ -6865,7 +6890,7 @@ dependencies = [
  "polkadot-erasure-coding",
  "polkadot-parachain",
  "polkadot-primitives",
- "schnorrkel",
+ "schnorrkel 0.10.2",
  "serde",
  "sp-application-crypto",
  "sp-consensus-babe",
@@ -8877,7 +8902,7 @@ dependencies = [
  "fork-tree",
  "futures",
  "log",
- "merlin",
+ "merlin 2.0.1",
  "num-bigint 0.2.6",
  "num-rational 0.2.4",
  "num-traits",
@@ -8890,7 +8915,7 @@ dependencies = [
  "sc-consensus-slots",
  "sc-keystore",
  "sc-telemetry",
- "schnorrkel",
+ "schnorrkel 0.9.1",
  "serde",
  "sp-api",
  "sp-application-crypto",
@@ -9741,7 +9766,7 @@ dependencies = [
  "arrayvec 0.5.2",
  "curve25519-dalek 2.1.3",
  "getrandom 0.1.16",
- "merlin",
+ "merlin 2.0.1",
  "rand 0.7.3",
  "rand_core 0.5.1",
  "sha2 0.8.2",
@@ -9749,6 +9774,23 @@ dependencies = [
  "zeroize",
 ]
 
+[[package]]
+name = "schnorrkel"
+version = "0.10.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "844b7645371e6ecdf61ff246ba1958c29e802881a749ae3fb1993675d210d28d"
+dependencies = [
+ "arrayref",
+ "arrayvec 0.7.2",
+ "curve25519-dalek-ng",
+ "merlin 3.0.0",
+ "rand_core 0.6.3",
+ "serde_bytes",
+ "sha2 0.9.8",
+ "subtle-ng",
+ "zeroize",
+]
+
 [[package]]
 name = "scopeguard"
 version = "1.1.0"
@@ -9867,6 +9909,15 @@ dependencies = [
  "serde_derive",
 ]
 
+[[package]]
+name = "serde_bytes"
+version = "0.11.7"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "cfc50e8183eeeb6178dcb167ae34a8051d63535023ae38b5d8d12beae193d37b"
+dependencies = [
+ "serde",
+]
+
 [[package]]
 name = "serde_derive"
 version = "1.0.137"
@@ -10306,7 +10357,7 @@ version = "0.10.0-dev"
 source = "git+https://github.com/paritytech/substrate?branch=master#f3139874cb50f9028ecba9bdbd3004e7f3f228f5"
 dependencies = [
  "async-trait",
- "merlin",
+ "merlin 2.0.1",
  "parity-scale-codec",
  "scale-info",
  "serde",
@@ -10344,7 +10395,7 @@ source = "git+https://github.com/paritytech/substrate?branch=master#f3139874cb50
 dependencies = [
  "parity-scale-codec",
  "scale-info",
- "schnorrkel",
+ "schnorrkel 0.9.1",
  "sp-core",
  "sp-runtime",
  "sp-std",
@@ -10369,7 +10420,7 @@ dependencies = [
  "lazy_static",
  "libsecp256k1",
  "log",
- "merlin",
+ "merlin 2.0.1",
  "num-traits",
  "parity-scale-codec",
  "parity-util-mem",
@@ -10378,7 +10429,7 @@ dependencies = [
  "rand 0.7.3",
  "regex",
  "scale-info",
- "schnorrkel",
+ "schnorrkel 0.9.1",
  "secp256k1",
  "secrecy",
  "serde",
@@ -10527,10 +10578,10 @@ source = "git+https://github.com/paritytech/substrate?branch=master#f3139874cb50
 dependencies = [
  "async-trait",
  "futures",
- "merlin",
+ "merlin 2.0.1",
  "parity-scale-codec",
  "parking_lot 0.12.1",
- "schnorrkel",
+ "schnorrkel 0.9.1",
  "serde",
  "sp-core",
  "sp-externalities",
@@ -11078,7 +11129,7 @@ checksum = "49eee6965196b32f882dd2ee85a92b1dbead41b04e53907f269de3b0dc04733c"
 dependencies = [
  "hmac 0.11.0",
  "pbkdf2 0.8.0",
- "schnorrkel",
+ "schnorrkel 0.9.1",
  "sha2 0.9.8",
  "zeroize",
 ]
@@ -11216,6 +11267,12 @@ version = "2.4.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "6bdef32e8150c2a081110b42772ffe7d7c9032b606bc226c8260fd97e0976601"
 
+[[package]]
+name = "subtle-ng"
+version = "2.5.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "734676eb262c623cec13c3155096e08d1f8f29adce39ba17948b18dad1e54142"
+
 [[package]]
 name = "sval"
 version = "1.0.0-alpha.5"
diff --git a/node/core/approval-voting/Cargo.toml b/node/core/approval-voting/Cargo.toml
index 25fb51eb712b..84b13794c218 100644
--- a/node/core/approval-voting/Cargo.toml
+++ b/node/core/approval-voting/Cargo.toml
@@ -12,7 +12,7 @@ gum = { package = "tracing-gum", path = "../../gum" }
 bitvec = { version = "1.0.0", default-features = false, features = ["alloc"] }
 lru = "0.8"
 merlin = "2.0"
-schnorrkel = "0.9.1"
+schnorrkel = "0.10.2"
 kvdb = "0.12.0"
 derive_more = "0.99.17"
 thiserror = "1.0.31"
diff --git a/node/network/approval-distribution/Cargo.toml b/node/network/approval-distribution/Cargo.toml
index fa0e4fff2c91..85a1b604d107 100644
--- a/node/network/approval-distribution/Cargo.toml
+++ b/node/network/approval-distribution/Cargo.toml
@@ -24,7 +24,7 @@ polkadot-node-subsystem-test-helpers = { path = "../../subsystem-test-helpers" }
 polkadot-primitives-test-helpers = { path = "../../../primitives/test-helpers" }
 
 assert_matches = "1.4.0"
-schnorrkel = { version = "0.9.1", default-features = false }
+schnorrkel = { version = "0.10.2", default-features = false }
 rand_core = "0.5.1" # should match schnorrkel
 rand_chacha = "0.3.1"
 env_logger = "0.9.0"
diff --git a/node/primitives/Cargo.toml b/node/primitives/Cargo.toml
index 2e916df6a87e..6107f1a507bc 100644
--- a/node/primitives/Cargo.toml
+++ b/node/primitives/Cargo.toml
@@ -17,7 +17,7 @@ sp-consensus-babe = { git = "https://github.com/paritytech/substrate", branch =
 sp-keystore = { git = "https://github.com/paritytech/substrate", branch = "master" }
 sp-maybe-compressed-blob = { git = "https://github.com/paritytech/substrate", branch = "master" }
 polkadot-parachain = { path = "../../parachain", default-features = false }
-schnorrkel = "0.9.1"
+schnorrkel = "0.10.2"
 thiserror = "1.0.31"
 serde = { version = "1.0.137", features = ["derive"] }