diff --git a/crates/providers/src/provider.rs b/crates/providers/src/provider.rs
index cb2baaf12a8..ff029b7fcff 100644
--- a/crates/providers/src/provider.rs
+++ b/crates/providers/src/provider.rs
@@ -854,7 +854,7 @@ mod providers_test {
         let fee_history = provider
             .get_fee_history(
                 U256::from(utils::EIP1559_FEE_ESTIMATION_PAST_BLOCKS),
-                BlockNumberOrTag::Number(block_number.to()),
+                BlockNumberOrTag::Number(block_number),
                 &[utils::EIP1559_FEE_ESTIMATION_REWARD_PERCENTILE],
             )
             .await
diff --git a/crates/rpc-types/src/eth/transaction/access_list.rs b/crates/rpc-types/src/eth/transaction/access_list.rs
index c4a7e8d1abe..a59877ee87d 100644
--- a/crates/rpc-types/src/eth/transaction/access_list.rs
+++ b/crates/rpc-types/src/eth/transaction/access_list.rs
@@ -1,4 +1,4 @@
-use alloy_primitives::{Address, U256};
+use alloy_primitives::{Address, U256, B256};
 use serde::{Deserialize, Serialize};
 
 /// A list of addresses and storage keys that the transaction plans to access.
@@ -9,7 +9,7 @@ pub struct AccessListItem {
     /// Account addresses that would be loaded at the start of execution
     pub address: Address,
     /// Keys of storage that would be loaded at the start of execution
-    pub storage_keys: Vec<U256>,
+    pub storage_keys: Vec<B256>,
 }
 
 /// AccessList as defined in EIP-2930
@@ -29,12 +29,28 @@ impl AccessList {
 
     /// Consumes the type and returns an iterator over the list's addresses and storage keys.
     pub fn into_flatten(self) -> impl Iterator<Item = (Address, Vec<U256>)> {
-        self.0.into_iter().map(|item| (item.address, item.storage_keys))
+        self.0.into_iter().map(|item| {
+            (
+                item.address,
+                item.storage_keys
+                    .into_iter()
+                    .map(|slot| U256::from_be_bytes(slot.0))
+                    .collect(),
+            )
+        })
     }
 
     /// Returns an iterator over the list's addresses and storage keys.
-    pub fn flatten(&self) -> impl Iterator<Item = (Address, &[U256])> + '_ {
-        self.0.iter().map(|item| (item.address, item.storage_keys.as_slice()))
+    pub fn flatten(&self) -> impl Iterator<Item = (Address, Vec<U256>)> + '_ {
+        self.0.iter().map(|item| {
+            (
+                item.address,
+                item.storage_keys
+                    .iter()
+                    .map(|slot| U256::from_be_bytes(slot.0))
+                    .collect(),
+            )
+        })
     }
 }
 
@@ -55,8 +71,8 @@ mod tests {
     #[test]
     fn access_list_serde() {
         let list = AccessList(vec![
-            AccessListItem { address: Address::ZERO, storage_keys: vec![U256::ZERO] },
-            AccessListItem { address: Address::ZERO, storage_keys: vec![U256::ZERO] },
+            AccessListItem { address: Address::ZERO, storage_keys: vec![B256::ZERO] },
+            AccessListItem { address: Address::ZERO, storage_keys: vec![B256::ZERO] },
         ]);
         let json = serde_json::to_string(&list).unwrap();
         let list2 = serde_json::from_str::<AccessList>(&json).unwrap();
@@ -67,8 +83,8 @@ mod tests {
     fn access_list_with_gas_used() {
         let list = AccessListWithGasUsed {
             access_list: AccessList(vec![
-                AccessListItem { address: Address::ZERO, storage_keys: vec![U256::ZERO] },
-                AccessListItem { address: Address::ZERO, storage_keys: vec![U256::ZERO] },
+                AccessListItem { address: Address::ZERO, storage_keys: vec![B256::ZERO] },
+                AccessListItem { address: Address::ZERO, storage_keys: vec![B256::ZERO] },
             ]),
             gas_used: U256::from(100),
         };