diff --git a/src/l1/mod.rs b/src/l1/mod.rs
index 330fc412..ad738e08 100644
--- a/src/l1/mod.rs
+++ b/src/l1/mod.rs
@@ -231,7 +231,7 @@ impl InnerWatcher {
 
             let input = &block
                 .transactions
-                .get(0)
+                .first()
                 .expect(
                     "Could not find the L1 attributes deposited transaction in the parent L2 block",
                 )
diff --git a/src/types/attributes.rs b/src/types/attributes.rs
index b348959c..5683d556 100644
--- a/src/types/attributes.rs
+++ b/src/types/attributes.rs
@@ -24,7 +24,7 @@ impl RawTransaction {
     pub fn derive_unsafe_epoch(&self) -> Result<(Epoch, u64)> {
         let rlp = Rlp::new(self.0.as_slice());
         let tx = rlp.as_val::<DepositedTransaction>()?;
-        let calldata = Bytes::try_from(tx.data)?;
+        let calldata = Bytes::from(tx.data);
         let attr = AttributesDepositedCall::try_from(calldata)?;
         let epoch = Epoch::from(&attr);
 
@@ -335,8 +335,8 @@ impl TryFrom<Log> for UserDeposited {
             .into_bytes()
             .unwrap();
 
-        let from = Address::try_from(log.topics[1])?;
-        let to = Address::try_from(log.topics[2])?;
+        let from = Address::from(log.topics[1]);
+        let to = Address::from(log.topics[2]);
         let mint = U256::from_big_endian(&opaque_data[0..32]);
         let value = U256::from_big_endian(&opaque_data[32..64]);
         let gas = u64::from_be_bytes(opaque_data[64..72].try_into()?);
diff --git a/src/types/common.rs b/src/types/common.rs
index 87186637..a6a94e94 100644
--- a/src/types/common.rs
+++ b/src/types/common.rs
@@ -117,7 +117,7 @@ impl TryFrom<Block<Transaction>> for HeadInfo {
     fn try_from(block: Block<Transaction>) -> std::result::Result<Self, Self::Error> {
         let tx_calldata = block
             .transactions
-            .get(0)
+            .first()
             .ok_or(eyre::eyre!(
                 "Could not find the L1 attributes deposited transaction"
             ))?