diff --git a/vendor/frontier/client/rpc/src/eth/pending.rs b/vendor/frontier/client/rpc/src/eth/pending.rs
index 9384b094d7..d30f138a24 100644
--- a/vendor/frontier/client/rpc/src/eth/pending.rs
+++ b/vendor/frontier/client/rpc/src/eth/pending.rs
@@ -61,7 +61,7 @@ where
 	P: TransactionPool<Block = B, Hash = B::Hash> + 'static,
 {
 	/// Creates a pending runtime API.
-	pub(crate) async fn pending_runtime_api(&self) -> Result<(B::Hash, ApiRef<C::Api>), Error> {
+	pub(crate) async fn pending_runtime_api(&self) -> Result<(B::Hash, ApiRef<'_, C::Api>), Error> {
 		let api = self.client.runtime_api();
 
 		let info = self.client.info();
diff --git a/vendor/frontier/precompiles/src/evm/handle.rs b/vendor/frontier/precompiles/src/evm/handle.rs
index 2d37d37dff..e1e54b7f0c 100644
--- a/vendor/frontier/precompiles/src/evm/handle.rs
+++ b/vendor/frontier/precompiles/src/evm/handle.rs
@@ -49,7 +49,7 @@ pub trait PrecompileHandleExt: PrecompileHandle {
 	fn read_u32_selector(&self) -> MayRevert<u32>;
 
 	/// Returns a reader of the input, skipping the selector.
-	fn read_after_selector(&self) -> MayRevert<Reader>;
+	fn read_after_selector(&self) -> MayRevert<Reader<'_>>;
 }
 
 impl<T: PrecompileHandle> PrecompileHandleExt for T {
@@ -96,7 +96,7 @@ impl<T: PrecompileHandle> PrecompileHandleExt for T {
 	}
 
 	/// Returns a reader of the input, skipping the selector.
-	fn read_after_selector(&self) -> MayRevert<Reader> {
+	fn read_after_selector(&self) -> MayRevert<Reader<'_>> {
 		Reader::new_skip_selector(self.input())
 	}
 }
diff --git a/vendor/frontier/precompiles/src/testing/execution.rs b/vendor/frontier/precompiles/src/testing/execution.rs
index e8279ee7dd..341d3a71ed 100644
--- a/vendor/frontier/precompiles/src/testing/execution.rs
+++ b/vendor/frontier/precompiles/src/testing/execution.rs
@@ -239,7 +239,7 @@ pub trait PrecompileTesterExt: PrecompileSet + Sized {
 		from: impl Into<H160>,
 		to: impl Into<H160>,
 		data: impl Into<Vec<u8>>,
-	) -> PrecompilesTester<Self>;
+	) -> PrecompilesTester<'_, Self>;
 }
 
 impl<T: PrecompileSet> PrecompileTesterExt for T {
@@ -248,7 +248,7 @@ impl<T: PrecompileSet> PrecompileTesterExt for T {
 		from: impl Into<H160>,
 		to: impl Into<H160>,
 		data: impl Into<Vec<u8>>,
-	) -> PrecompilesTester<Self> {
+	) -> PrecompilesTester<'_, Self> {
 		PrecompilesTester::new(self, from, to, data.into())
 	}
 }
diff --git a/vendor/w3f-bls/src/double_pop.rs b/vendor/w3f-bls/src/double_pop.rs
index 5a8c7b0712..8234802c55 100644
--- a/vendor/w3f-bls/src/double_pop.rs
+++ b/vendor/w3f-bls/src/double_pop.rs
@@ -17,7 +17,6 @@ use ark_ec::Group;
 use ark_ff::field_hashers::{DefaultFieldHasher, HashToField};
 
 const PROOF_OF_POSSESSION_CONTEXT: &'static [u8] = b"POP_";
-const BLS_CONTEXT: &'static [u8] = b"BLS_";
 
 /// Proof Of Possession of the secret key as the secret scaler genarting both public
 /// keys in G1 and G2 by generating a BLS Signature of public key (in G2)
diff --git a/vendor/w3f-bls/src/verifiers.rs b/vendor/w3f-bls/src/verifiers.rs
index 6c0a15cf2f..f9b27797a2 100644
--- a/vendor/w3f-bls/src/verifiers.rs
+++ b/vendor/w3f-bls/src/verifiers.rs
@@ -268,7 +268,7 @@ pub fn verify_using_aggregated_auxiliary_public_keys<
 
     //Simplify from here on.
     for (m, pk) in itr {
-        publickeys.push(pk.borrow().0.clone());
+        publickeys.push(pk.0);
         messages.push(
             m.hash_to_signature_curve::<E>()
                 + E::SignatureGroupAffine::generator() * pseudo_random_scalar,