diff --git a/rust/Cargo.lock b/rust/Cargo.lock
index 9fbf99adf40..7ae598db1fd 100644
--- a/rust/Cargo.lock
+++ b/rust/Cargo.lock
@@ -1498,7 +1498,6 @@ dependencies = [
 name = "tw_evm"
 version = "0.1.0"
 dependencies = [
- "arbitrary",
  "itertools",
  "lazy_static",
  "rlp",
diff --git a/rust/tw_evm/Cargo.toml b/rust/tw_evm/Cargo.toml
index 7ca9948ad5d..43c3f334c72 100644
--- a/rust/tw_evm/Cargo.toml
+++ b/rust/tw_evm/Cargo.toml
@@ -3,11 +3,7 @@ name = "tw_evm"
 version = "0.1.0"
 edition = "2021"
 
-[features]
-arbitrary = ["dep:arbitrary", "tw_hash/arbitrary", "tw_number/arbitrary"]
-
 [dependencies]
-arbitrary = { version = "1", features = ["derive"], optional = true }
 itertools = "0.10.5"
 lazy_static = "1.4.0"
 rlp = "0.5.2"
diff --git a/rust/tw_evm/fuzz/Cargo.toml b/rust/tw_evm/fuzz/Cargo.toml
index bc553ac5071..6fad417a7d8 100644
--- a/rust/tw_evm/fuzz/Cargo.toml
+++ b/rust/tw_evm/fuzz/Cargo.toml
@@ -15,7 +15,6 @@ tw_proto = { path = "../../tw_proto", features = ["fuzz"] }
 
 [dependencies.tw_evm]
 path = ".."
-features = ["arbitrary"]
 
 # Prevent this from interfering with workspaces
 [workspace]
diff --git a/rust/tw_evm/fuzz/fuzz_targets/abi_decode_value.rs b/rust/tw_evm/fuzz/fuzz_targets/abi_decode_value.rs
index 4b9088794b9..4da7cf941e9 100644
--- a/rust/tw_evm/fuzz/fuzz_targets/abi_decode_value.rs
+++ b/rust/tw_evm/fuzz/fuzz_targets/abi_decode_value.rs
@@ -6,21 +6,11 @@
 
 #![no_main]
 
-use libfuzzer_sys::{arbitrary, fuzz_target};
+use libfuzzer_sys::fuzz_target;
 use tw_evm::evm_context::StandardEvmContext;
 use tw_evm::modules::abi_encoder::AbiEncoder;
 use tw_proto::EthereumAbi::Proto;
 
-#[derive(arbitrary::Arbitrary, Debug)]
-struct ValueDecodingInput<'a> {
-    encoded: &'a [u8],
-    param_type: &'a str,
-}
-
-fuzz_target!(|data: ValueDecodingInput<'_>| {
-    let input = Proto::ValueDecodingInput {
-        encoded: data.encoded.into(),
-        param_type: data.param_type.into(),
-    };
+fuzz_target!(|input: Proto::ValueDecodingInput<'_>| {
     let _ = AbiEncoder::<StandardEvmContext>::decode_value(input);
 });
diff --git a/rust/tw_evm/fuzz/fuzz_targets/abi_encode_function.rs b/rust/tw_evm/fuzz/fuzz_targets/abi_encode_function.rs
index 265357eeefd..a8652534169 100644
--- a/rust/tw_evm/fuzz/fuzz_targets/abi_encode_function.rs
+++ b/rust/tw_evm/fuzz/fuzz_targets/abi_encode_function.rs
@@ -6,28 +6,11 @@
 
 #![no_main]
 
-use libfuzzer_sys::{arbitrary, fuzz_target};
-use tw_evm::abi::token::Token;
+use libfuzzer_sys::fuzz_target;
 use tw_evm::evm_context::StandardEvmContext;
 use tw_evm::modules::abi_encoder::AbiEncoder;
 use tw_proto::EthereumAbi::Proto;
 
-#[derive(arbitrary::Arbitrary, Debug)]
-struct FunctionEncodingInput<'a> {
-    function_name: &'a str,
-    tokens: Vec<Token>,
-}
-
-fuzz_target!(|data: FunctionEncodingInput<'_>| {
-    let tokens = data
-        .tokens
-        .into_iter()
-        .map(AbiEncoder::<StandardEvmContext>::token_to_proto)
-        .collect();
-
-    let input = Proto::FunctionEncodingInput {
-        function_name: data.function_name.into(),
-        tokens,
-    };
+fuzz_target!(|input: Proto::FunctionEncodingInput<'_>| {
     let _ = AbiEncoder::<StandardEvmContext>::encode_contract_call(input);
 });
diff --git a/rust/tw_evm/fuzz/fuzz_targets/abi_function_decode_input.rs b/rust/tw_evm/fuzz/fuzz_targets/abi_function_decode_input.rs
index 762ce0a16b2..cfba6120348 100644
--- a/rust/tw_evm/fuzz/fuzz_targets/abi_function_decode_input.rs
+++ b/rust/tw_evm/fuzz/fuzz_targets/abi_function_decode_input.rs
@@ -6,27 +6,11 @@
 
 #![no_main]
 
-use libfuzzer_sys::{arbitrary, fuzz_target};
-use tw_evm::abi::param::Param;
+use libfuzzer_sys::fuzz_target;
 use tw_evm::evm_context::StandardEvmContext;
 use tw_evm::modules::abi_encoder::AbiEncoder;
 use tw_proto::EthereumAbi::Proto;
 
-#[derive(arbitrary::Arbitrary, Debug)]
-struct ContractCallDecodingInput<'a> {
-    encoded: &'a [u8],
-    inputs: Vec<Param>,
-}
-
-fuzz_target!(|data: ContractCallDecodingInput<'_>| {
-    let params = data
-        .inputs
-        .into_iter()
-        .map(AbiEncoder::<StandardEvmContext>::param_to_proto)
-        .collect();
-    let decoding_input = Proto::ParamsDecodingInput {
-        encoded: data.encoded.into(),
-        abi: Proto::mod_ParamsDecodingInput::OneOfabi::abi_params(Proto::AbiParams { params }),
-    };
-    let _ = AbiEncoder::<StandardEvmContext>::decode_params(decoding_input);
+fuzz_target!(|input: Proto::ParamsDecodingInput<'_>| {
+    let _ = AbiEncoder::<StandardEvmContext>::decode_params(input);
 });
diff --git a/rust/tw_evm/src/abi/non_empty_array.rs b/rust/tw_evm/src/abi/non_empty_array.rs
index b0d7763e99d..b6a7a535c28 100644
--- a/rust/tw_evm/src/abi/non_empty_array.rs
+++ b/rust/tw_evm/src/abi/non_empty_array.rs
@@ -13,7 +13,6 @@ pub type NonEmptyBytes = NonEmptyArray<u8>;
 
 /// A convenient wrapper over `NonZeroUsize`.
 #[derive(Copy, Clone, PartialEq)]
-#[cfg_attr(feature = "arbitrary", derive(arbitrary::Arbitrary))]
 pub struct NonZeroLen(NonZeroUsize);
 
 impl NonZeroLen {
@@ -52,7 +51,7 @@ impl<T> NonEmptyArray<T> {
     }
 
     pub fn len(&self) -> NonZeroLen {
-        NonZeroLen::new(self.0.len()).expect("`FixedArray` must have at least one element")
+        NonZeroLen::new(self.0.len()).expect("`NonEmptyArray` must have at least one element")
     }
 
     pub fn into_vec(self) -> Vec<T> {
@@ -82,17 +81,3 @@ impl AsRef<[u8]> for NonEmptyArray<u8> {
         &self.0
     }
 }
-
-#[cfg(feature = "arbitrary")]
-impl<'a, T> arbitrary::Arbitrary<'a> for NonEmptyArray<T>
-where
-    T: arbitrary::Arbitrary<'a>,
-{
-    fn arbitrary(u: &mut arbitrary::Unstructured<'a>) -> arbitrary::Result<Self> {
-        let arr: Vec<T> = Vec::arbitrary(u)?;
-        if arr.is_empty() {
-            return Err(arbitrary::Error::EmptyChoose);
-        }
-        Ok(NonEmptyArray(arr))
-    }
-}
diff --git a/rust/tw_evm/src/abi/param.rs b/rust/tw_evm/src/abi/param.rs
index 92b2f19e2da..93ca5dcb3eb 100644
--- a/rust/tw_evm/src/abi/param.rs
+++ b/rust/tw_evm/src/abi/param.rs
@@ -10,7 +10,6 @@ use serde::{de::Error as DeError, Deserialize, Deserializer};
 use std::fmt::Formatter;
 
 #[derive(Clone, Debug, PartialEq)]
-#[cfg_attr(feature = "arbitrary", derive(arbitrary::Arbitrary))]
 pub struct Param {
     /// Param name.
     pub name: Option<String>,
diff --git a/rust/tw_evm/src/abi/param_token.rs b/rust/tw_evm/src/abi/param_token.rs
index 724a615bbde..420b8e6f217 100644
--- a/rust/tw_evm/src/abi/param_token.rs
+++ b/rust/tw_evm/src/abi/param_token.rs
@@ -10,7 +10,6 @@ use serde::ser::SerializeMap;
 use serde::{Serialize, Serializer};
 
 #[derive(Clone, Debug, PartialEq)]
-#[cfg_attr(feature = "arbitrary", derive(arbitrary::Arbitrary))]
 pub struct NamedToken {
     /// Optional param name.
     pub name: Option<String>,
diff --git a/rust/tw_evm/src/abi/param_type/mod.rs b/rust/tw_evm/src/abi/param_type/mod.rs
index 1e3ff5ec2a6..1ca70655574 100644
--- a/rust/tw_evm/src/abi/param_type/mod.rs
+++ b/rust/tw_evm/src/abi/param_type/mod.rs
@@ -18,7 +18,6 @@ use reader::Reader;
 use writer::Writer;
 
 #[derive(Clone, Debug, PartialEq)]
-#[cfg_attr(feature = "arbitrary", derive(arbitrary::Arbitrary))]
 pub enum ParamType {
     /// Address.
     ///
diff --git a/rust/tw_evm/src/abi/token.rs b/rust/tw_evm/src/abi/token.rs
index ec68897ed51..3d52d080d98 100644
--- a/rust/tw_evm/src/abi/token.rs
+++ b/rust/tw_evm/src/abi/token.rs
@@ -17,7 +17,6 @@ use tw_memory::Data;
 use tw_number::{I256, U256};
 
 #[derive(Debug, Clone, PartialEq)]
-#[cfg_attr(feature = "arbitrary", derive(arbitrary::Arbitrary))]
 pub enum Token {
     /// Address.
     ///
diff --git a/rust/tw_evm/src/abi/uint.rs b/rust/tw_evm/src/abi/uint.rs
index c0a125c2d76..3b5f6021432 100644
--- a/rust/tw_evm/src/abi/uint.rs
+++ b/rust/tw_evm/src/abi/uint.rs
@@ -11,17 +11,6 @@ use tw_number::U256;
 #[derive(Clone, Copy, PartialEq)]
 pub struct UintBits(usize);
 
-#[cfg(feature = "arbitrary")]
-impl<'a> arbitrary::Arbitrary<'a> for UintBits {
-    fn arbitrary(u: &mut arbitrary::Unstructured<'a>) -> arbitrary::Result<Self> {
-        let bits = usize::arbitrary(u)? % U256::BITS % 8;
-        if bits == 0 {
-            return Ok(UintBits(8));
-        }
-        Ok(UintBits(bits))
-    }
-}
-
 impl Default for UintBits {
     fn default() -> Self {
         UintBits::new(U256::BITS).expect("U256::BITS must be a valid number of bits")
diff --git a/rust/tw_evm/src/address.rs b/rust/tw_evm/src/address.rs
index fa04f1b59e4..c53887b5662 100644
--- a/rust/tw_evm/src/address.rs
+++ b/rust/tw_evm/src/address.rs
@@ -31,7 +31,6 @@ pub trait EvmAddress: FromStr<Err = AddressError> + Into<Address> {
 
 /// Represents an Ethereum address.
 #[derive(Clone, Copy, Debug, Default, PartialEq)]
-#[cfg_attr(feature = "arbitrary", derive(arbitrary::Arbitrary))]
 pub struct Address {
     bytes: H160,
 }
diff --git a/rust/tw_evm/src/modules/abi_encoder.rs b/rust/tw_evm/src/modules/abi_encoder.rs
index 11394cbfa3e..6879a1ab2e4 100644
--- a/rust/tw_evm/src/modules/abi_encoder.rs
+++ b/rust/tw_evm/src/modules/abi_encoder.rs
@@ -256,7 +256,7 @@ impl<Context: EvmContext> AbiEncoder<Context> {
             },
             TokenEnum::byte_array(bytes) => Ok(Token::Bytes(bytes.to_vec())),
             TokenEnum::byte_array_fix(bytes) => {
-                let checked_bytes = NonEmptyBytes::new(bytes.iter().copied().collect())?;
+                let checked_bytes = NonEmptyBytes::new(bytes.to_vec())?;
                 Ok(Token::FixedBytes(checked_bytes))
             },
             TokenEnum::array(arr) => {