diff --git a/Cargo.toml b/Cargo.toml
index 8135929..e265217 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -10,10 +10,10 @@ edition = "2021"
 
 [dependencies]
 bytes = { version = "1.0", default-features = false }
-ethereum-types = { version = "0.14", default-features = false, features = ["rlp", "codec"] }
+ethereum-types = { version = "0.15", default-features = false, features = ["rlp", "codec"] }
 hash-db = { version = "0.16", default-features = false }
 hash256-std-hasher = { version = "0.15", default-features = false }
-rlp = { version = "0.5.2", default-features = false, features = ["derive"] }
+rlp = { version = "0.6", default-features = false, features = ["derive"] }
 sha3 = { version = "0.10", default-features = false }
 trie-root = { version = "0.18", default-features = false }
 
diff --git a/src/header.rs b/src/header.rs
index 037f6b3..a684f85 100644
--- a/src/header.rs
+++ b/src/header.rs
@@ -53,7 +53,7 @@ impl Header {
 
 	#[must_use]
 	pub fn hash(&self) -> H256 {
-		H256::from_slice(Keccak256::digest(&rlp::encode(self)).as_slice())
+		H256::from_slice(Keccak256::digest(rlp::encode(self)).as_slice())
 	}
 }
 
diff --git a/src/transaction/eip1559.rs b/src/transaction/eip1559.rs
index 1429fd0..e39445f 100644
--- a/src/transaction/eip1559.rs
+++ b/src/transaction/eip1559.rs
@@ -87,16 +87,8 @@ impl rlp::Decodable for EIP1559Transaction {
 			input: rlp.val_at(7)?,
 			access_list: rlp.list_at(8)?,
 			odd_y_parity: rlp.val_at(9)?,
-			r: {
-				let mut rarr = [0_u8; 32];
-				rlp.val_at::<U256>(10)?.to_big_endian(&mut rarr);
-				H256::from(rarr)
-			},
-			s: {
-				let mut sarr = [0_u8; 32];
-				rlp.val_at::<U256>(11)?.to_big_endian(&mut sarr);
-				H256::from(sarr)
-			},
+			r: H256::from(rlp.val_at::<U256>(10)?.to_big_endian()),
+			s: H256::from(rlp.val_at::<U256>(11)?.to_big_endian()),
 		})
 	}
 }
diff --git a/src/transaction/eip2930.rs b/src/transaction/eip2930.rs
index d613139..f53315c 100644
--- a/src/transaction/eip2930.rs
+++ b/src/transaction/eip2930.rs
@@ -112,16 +112,8 @@ impl rlp::Decodable for EIP2930Transaction {
 			input: rlp.val_at(6)?,
 			access_list: rlp.list_at(7)?,
 			odd_y_parity: rlp.val_at(8)?,
-			r: {
-				let mut rarr = [0_u8; 32];
-				rlp.val_at::<U256>(9)?.to_big_endian(&mut rarr);
-				H256::from(rarr)
-			},
-			s: {
-				let mut sarr = [0_u8; 32];
-				rlp.val_at::<U256>(10)?.to_big_endian(&mut sarr);
-				H256::from(sarr)
-			},
+			r: H256::from(rlp.val_at::<U256>(9)?.to_big_endian()),
+			s: H256::from(rlp.val_at::<U256>(10)?.to_big_endian()),
 		})
 	}
 }
diff --git a/src/transaction/legacy.rs b/src/transaction/legacy.rs
index 792a7aa..5cc961b 100644
--- a/src/transaction/legacy.rs
+++ b/src/transaction/legacy.rs
@@ -186,7 +186,7 @@ pub struct LegacyTransaction {
 
 impl LegacyTransaction {
 	pub fn hash(&self) -> H256 {
-		H256::from_slice(Keccak256::digest(&rlp::encode(self)).as_slice())
+		H256::from_slice(Keccak256::digest(rlp::encode(self)).as_slice())
 	}
 
 	pub fn to_message(self) -> LegacyTransactionMessage {
@@ -224,16 +224,8 @@ impl rlp::Decodable for LegacyTransaction {
 		}
 
 		let v = rlp.val_at(6)?;
-		let r = {
-			let mut rarr = [0_u8; 32];
-			rlp.val_at::<U256>(7)?.to_big_endian(&mut rarr);
-			H256::from(rarr)
-		};
-		let s = {
-			let mut sarr = [0_u8; 32];
-			rlp.val_at::<U256>(8)?.to_big_endian(&mut sarr);
-			H256::from(sarr)
-		};
+		let r = H256::from(rlp.val_at::<U256>(7)?.to_big_endian());
+		let s = H256::from(rlp.val_at::<U256>(8)?.to_big_endian());
 		let signature = TransactionSignature::new(v, r, s)
 			.ok_or(DecoderError::Custom("Invalid transaction signature format"))?;
 
@@ -262,7 +254,7 @@ pub struct LegacyTransactionMessage {
 
 impl LegacyTransactionMessage {
 	pub fn hash(&self) -> H256 {
-		H256::from_slice(Keccak256::digest(&rlp::encode(self)).as_slice())
+		H256::from_slice(Keccak256::digest(rlp::encode(self)).as_slice())
 	}
 }