diff --git a/crates/rpc-types-eth/src/transaction/request.rs b/crates/rpc-types-eth/src/transaction/request.rs
index 36c85addd3c..b61d2875cfb 100644
--- a/crates/rpc-types-eth/src/transaction/request.rs
+++ b/crates/rpc-types-eth/src/transaction/request.rs
@@ -8,7 +8,9 @@ use alloy_consensus::{
 use alloy_primitives::{Address, Bytes, ChainId, TxKind, B256, U256};
 use serde::{Deserialize, Serialize};
 use std::hash::Hash;
+
 /// Represents _all_ transaction requests to/from RPC.
+#[cfg_attr(any(test, feature = "arbitrary"), derive(arbitrary::Arbitrary))]
 #[derive(Clone, Debug, Default, PartialEq, Eq, Hash, Serialize, Deserialize)]
 #[serde(rename_all = "camelCase")]
 #[doc(alias = "TxRequest")]
@@ -484,6 +486,7 @@ impl TransactionRequest {
 ///
 /// If both fields are set, it is expected that they contain the same value, otherwise an error is
 /// returned.
+#[cfg_attr(any(test, feature = "arbitrary"), derive(arbitrary::Arbitrary))]
 #[derive(Clone, Debug, Default, PartialEq, Eq, Hash, Serialize, Deserialize)]
 #[doc(alias = "TxInput")]
 pub struct TransactionInput {
diff --git a/deny.toml b/deny.toml
index 901fbbe7947..2278d2ddde4 100644
--- a/deny.toml
+++ b/deny.toml
@@ -16,6 +16,7 @@ allow = [
     "Apache-2.0",
     "Apache-2.0 WITH LLVM-exception",
     "BSD-3-Clause",
+    "BSD-2-Clause",
     "0BSD",
     "ISC",
     "Unicode-3.0",
@@ -32,6 +33,7 @@ exceptions = [
     # https://tldrlegal.com/license/creative-commons-cc0-1.0-universal
     { allow = ["CC0-1.0"], name = "tiny-keccak" },
     { allow = ["CC0-1.0"], name = "trezor-client" },
+    { allow = ["BSD-2-Clause"], name = "zerocopy" },
 ]
 
 [[licenses.clarify]]