diff --git a/src/bin/hive_genesis.rs b/src/bin/hive_genesis.rs
index 784430c1a..1a02cd260 100644
--- a/src/bin/hive_genesis.rs
+++ b/src/bin/hive_genesis.rs
@@ -32,12 +32,13 @@ fn main() {
     let hive_genesis_content = std::fs::read_to_string(hive_genesis_path).expect("Failed to read hive genesis file");
     let hive_genesis: HiveGenesisConfig =
         serde_json::from_str(&hive_genesis_content).expect("Failed to parse hive genesis json");
+    let chain_id = hive_genesis.config.chain_id.into();
 
     // Convert the hive genesis to a katana genesis.
     let genesis_json =
         hive_genesis.try_into_genesis_json(builder.clone()).expect("Failed to convert hive genesis to katana genesis");
 
-    let builder = builder.with_kakarot(Felt::ZERO).expect("Failed to set up Kakarot");
+    let builder = builder.with_kakarot(Felt::ZERO, chain_id).expect("Failed to set up Kakarot");
     let manifest = builder.manifest();
 
     // Write the genesis json to the file.
diff --git a/src/bin/katana_genesis.rs b/src/bin/katana_genesis.rs
index 2ea5305da..046a0e20c 100644
--- a/src/bin/katana_genesis.rs
+++ b/src/bin/katana_genesis.rs
@@ -20,6 +20,8 @@ static KAKAROT_CONTRACTS_PATH: LazyLock<PathBuf> =
 /// Mock coinbase address.
 static COINBASE_ADDRESS: LazyLock<Felt> = LazyLock::new(|| 0x12345u32.into());
 
+static CHAIN_ID: LazyLock<Felt> = LazyLock::new(|| Felt::from_str("0xb615f74ebad2c").expect("Invalid chain ID"));
+
 fn main() {
     // Load the env vars.
     dotenv().ok();
@@ -31,7 +33,7 @@ fn main() {
     // Read all the classes.
     let mut builder = KatanaGenesisBuilder::default()
         .load_classes(KAKAROT_CONTRACTS_PATH.clone())
-        .with_kakarot(*COINBASE_ADDRESS)
+        .with_kakarot(*COINBASE_ADDRESS, *CHAIN_ID)
         .expect("Failed to set up Kakarot");
     builder = builder.with_eoa(pk).expect("Failed to set up EOA").fund(pk, U256::from(u128::MAX)).unwrap();
     builder = builder.with_dev_allocation(10);
diff --git a/src/test_utils/constants.rs b/src/test_utils/constants.rs
index 879ef80ad..a187a7ddd 100644
--- a/src/test_utils/constants.rs
+++ b/src/test_utils/constants.rs
@@ -19,3 +19,4 @@ pub const KAKAROT_COINBASE: &str = "Kakarot_coinbase";
 pub const KAKAROT_BASE_FEE: &str = "Kakarot_base_fee";
 pub const KAKAROT_PREV_RANDAO: &str = "Kakarot_prev_randao";
 pub const KAKAROT_BLOCK_GAS_LIMIT: &str = "Kakarot_block_gas_limit";
+pub const KAKAROT_CHAIN_ID: &str = "Kakarot_chain_id";
diff --git a/src/test_utils/hive/mod.rs b/src/test_utils/hive/mod.rs
index cbc4bfb73..8da4a7e76 100644
--- a/src/test_utils/hive/mod.rs
+++ b/src/test_utils/hive/mod.rs
@@ -53,7 +53,7 @@ impl HiveGenesisConfig {
     /// marker type indicates that the Kakarot contract classes need to have been loaded into the builder.
     pub fn try_into_genesis_json(self, builder: KatanaGenesisBuilder<Loaded>) -> Result<GenesisJson, eyre::Error> {
         let coinbase_address = Felt::from_bytes_be_slice(self.coinbase.as_slice());
-        let builder = builder.with_kakarot(coinbase_address)?;
+        let builder = builder.with_kakarot(coinbase_address, self.config.chain_id.into())?;
 
         // Get the current state of the builder.
         let kakarot_address = builder.cache_load("kakarot_address")?;
@@ -151,8 +151,10 @@ mod tests {
     });
     static GENESIS_BUILDER_LOADED: LazyLock<KatanaGenesisBuilder<Loaded>> =
         LazyLock::new(|| KatanaGenesisBuilder::default().load_classes(ROOT.join("lib/kakarot/build")));
-    static GENESIS_BUILDER: LazyLock<KatanaGenesisBuilder<Initialized>> =
-        LazyLock::new(|| GENESIS_BUILDER_LOADED.clone().with_kakarot(Felt::ZERO).unwrap());
+    static GENESIS_BUILDER: LazyLock<KatanaGenesisBuilder<Initialized>> = LazyLock::new(|| {
+        // The chain ID is hardcoded in the hive genesis file src/test_utils/hive/test_data/genesis.json
+        GENESIS_BUILDER_LOADED.clone().with_kakarot(Felt::ZERO, Felt::from_hex_unchecked("7")).unwrap()
+    });
     static GENESIS: LazyLock<GenesisJson> =
         LazyLock::new(|| HIVE_GENESIS.clone().try_into_genesis_json(GENESIS_BUILDER_LOADED.clone()).unwrap());
 
diff --git a/src/test_utils/katana/genesis.rs b/src/test_utils/katana/genesis.rs
index 6dcce4eb9..a1384223d 100644
--- a/src/test_utils/katana/genesis.rs
+++ b/src/test_utils/katana/genesis.rs
@@ -3,8 +3,8 @@ use crate::{
     test_utils::constants::{
         ACCOUNT_AUTHORIZED_MESSAGE_HASHES, ACCOUNT_CAIRO1_HELPERS_CLASS_HASH, ACCOUNT_EVM_ADDRESS,
         ACCOUNT_IMPLEMENTATION, EIP_155_AUTHORIZED_MESSAGE_HASHES, KAKAROT_ACCOUNT_CONTRACT_CLASS_HASH,
-        KAKAROT_BASE_FEE, KAKAROT_BLOCK_GAS_LIMIT, KAKAROT_CAIRO1_HELPERS_CLASS_HASH, KAKAROT_COINBASE,
-        KAKAROT_EVM_TO_STARKNET_ADDRESS, KAKAROT_NATIVE_TOKEN_ADDRESS, KAKAROT_PREV_RANDAO,
+        KAKAROT_BASE_FEE, KAKAROT_BLOCK_GAS_LIMIT, KAKAROT_CAIRO1_HELPERS_CLASS_HASH, KAKAROT_CHAIN_ID,
+        KAKAROT_COINBASE, KAKAROT_EVM_TO_STARKNET_ADDRESS, KAKAROT_NATIVE_TOKEN_ADDRESS, KAKAROT_PREV_RANDAO,
         KAKAROT_UNINITIALIZED_ACCOUNT_CLASS_HASH, OWNABLE_OWNER,
     },
 };
@@ -152,6 +152,11 @@ impl KatanaGenesisBuilder<Uninitialized> {
             .par_bridge()
             .filter_map(|entry| {
                 let path = entry.unwrap().path().to_path_buf();
+                // Skip class_hashes.json file
+                if path.file_name().map_or(false, |name| name == "class_hashes.json") {
+                    return None;
+                }
+
                 let artifact = fs::read_to_string(&path).expect("Failed to read artifact");
                 let artifact = serde_json::from_str(&artifact).expect("Failed to parse artifact");
                 let class_hash = compute_class_hash(&artifact)
@@ -186,13 +191,14 @@ impl KatanaGenesisBuilder<Uninitialized> {
 impl KatanaGenesisBuilder<Loaded> {
     /// Add the Kakarot contract to the genesis. Updates the state to [Initialized].
     /// Once in the [Initialized] status, the builder can be built.
-    pub fn with_kakarot(mut self, coinbase_address: Felt) -> Result<KatanaGenesisBuilder<Initialized>> {
+    pub fn with_kakarot(mut self, coinbase_address: Felt, chain_id: Felt) -> Result<KatanaGenesisBuilder<Initialized>> {
         let kakarot_class_hash = self.kakarot_class_hash()?;
 
         let account_contract_class_hash = self.account_contract_class_hash()?;
         let uninitialized_account_class_hash = self.uninitialized_account_class_hash()?;
         let cairo1_helpers_class_hash = self.cairo1_helpers_class_hash()?;
         let block_gas_limit = 20_000_000u64.into();
+
         // Construct the kakarot contract address. Based on the constructor args from
         // https://github.com/kkrt-labs/kakarot/blob/main/src/kakarot/kakarot.cairo#L23
         let kakarot_address = ContractAddress::new(get_udc_deployed_address(
@@ -205,8 +211,8 @@ impl KatanaGenesisBuilder<Loaded> {
                 account_contract_class_hash,
                 uninitialized_account_class_hash,
                 cairo1_helpers_class_hash,
-                coinbase_address,
                 block_gas_limit,
+                chain_id,
             ],
         ));
         // Cache the address for later use.
@@ -223,6 +229,7 @@ impl KatanaGenesisBuilder<Loaded> {
             (storage_addr(KAKAROT_BASE_FEE)?, Felt::ZERO),
             (storage_addr(KAKAROT_PREV_RANDAO)?, Felt::ZERO),
             (storage_addr(KAKAROT_BLOCK_GAS_LIMIT)?, block_gas_limit),
+            (storage_addr(KAKAROT_CHAIN_ID)?, chain_id),
         ]
         .into_iter()
         .collect();
diff --git a/tests/tests/eth_provider.rs b/tests/tests/eth_provider.rs
index 2a150b656..43ec43185 100644
--- a/tests/tests/eth_provider.rs
+++ b/tests/tests/eth_provider.rs
@@ -73,7 +73,7 @@ async fn test_chain_id(#[future] katana: Katana, _setup: ()) {
     let chain_id = eth_provider.chain_id().await.unwrap().unwrap_or_default();
 
     // Then
-    // Chain ID should correspond to "kaka_test"
+    // Chain ID should correspond to "kaka_test" % max safe chain id
     assert_eq!(chain_id, U64::from_str_radix("b615f74ebad2c", 16).unwrap());
 }