diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 722096aee..68d3256f9 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -168,6 +168,7 @@ jobs:
         uses: actions/checkout@v3
         with:
           repository: kkrt-labs/ef-tests
+          ref: dev/rename-precompiles-class
       - name: Checkout local skip file
         uses: actions/checkout@v3
         with:
diff --git a/src/kakarot/instructions/block_information.cairo b/src/kakarot/instructions/block_information.cairo
index 93fa19642..5adb26e38 100644
--- a/src/kakarot/instructions/block_information.cairo
+++ b/src/kakarot/instructions/block_information.cairo
@@ -11,7 +11,7 @@ from starkware.cairo.common.uint256 import Uint256
 from kakarot.constants import Constants
 from kakarot.evm import EVM
 from kakarot.interfaces.interfaces import ICairo1Helpers
-from kakarot.storages import Kakarot_precompiles_class_hash
+from kakarot.storages import Kakarot_cairo1_helpers_class_hash
 from kakarot.model import model
 from kakarot.stack import Stack
 from kakarot.state import State
@@ -172,7 +172,7 @@ namespace Internals {
             return ();
         }
 
-        let (implementation) = Kakarot_precompiles_class_hash.read();
+        let (implementation) = Kakarot_cairo1_helpers_class_hash.read();
         let (blockhash) = ICairo1Helpers.library_call_get_block_hash(
             implementation, block_number.low
         );
diff --git a/src/kakarot/instructions/environmental_information.cairo b/src/kakarot/instructions/environmental_information.cairo
index c8fedaabd..1c3eacf90 100644
--- a/src/kakarot/instructions/environmental_information.cairo
+++ b/src/kakarot/instructions/environmental_information.cairo
@@ -19,7 +19,7 @@ from kakarot.memory import Memory
 from kakarot.model import model
 from kakarot.stack import Stack
 from kakarot.state import State
-from kakarot.storages import Kakarot_precompiles_class_hash
+from kakarot.storages import Kakarot_cairo1_helpers_class_hash
 from utils.array import slice
 from utils.bytes import bytes_to_bytes8_little_endian
 from utils.uint256 import uint256_to_uint160, uint256_add
@@ -481,7 +481,7 @@ namespace EnvironmentalInformation {
             dst, account.code_len, account.code
         );
 
-        let (implementation) = Kakarot_precompiles_class_hash.read();
+        let (implementation) = Kakarot_cairo1_helpers_class_hash.read();
         let (code_hash) = ICairo1Helpers.library_call_keccak(
             class_hash=implementation,
             words_len=dst_len,
diff --git a/src/kakarot/instructions/sha3.cairo b/src/kakarot/instructions/sha3.cairo
index 4966d3ef3..7daac5b0f 100644
--- a/src/kakarot/instructions/sha3.cairo
+++ b/src/kakarot/instructions/sha3.cairo
@@ -15,7 +15,7 @@ from kakarot.gas import Gas
 from kakarot.memory import Memory
 from kakarot.model import model
 from kakarot.stack import Stack
-from kakarot.storages import Kakarot_precompiles_class_hash
+from kakarot.storages import Kakarot_cairo1_helpers_class_hash
 from utils.bytes import bytes_to_bytes8_little_endian
 
 namespace Sha3 {
@@ -61,7 +61,7 @@ namespace Sha3 {
             dst, size.low, bigendian_data
         );
 
-        let (implementation) = Kakarot_precompiles_class_hash.read();
+        let (implementation) = Kakarot_cairo1_helpers_class_hash.read();
         let (result) = ICairo1Helpers.library_call_keccak(
             class_hash=implementation,
             words_len=dst_len,
diff --git a/src/kakarot/instructions/system_operations.cairo b/src/kakarot/instructions/system_operations.cairo
index cef2cec28..230cea11b 100644
--- a/src/kakarot/instructions/system_operations.cairo
+++ b/src/kakarot/instructions/system_operations.cairo
@@ -21,7 +21,7 @@ from kakarot.gas import Gas
 from kakarot.memory import Memory
 from kakarot.model import model
 from kakarot.stack import Stack
-from kakarot.storages import Kakarot_precompiles_class_hash
+from kakarot.storages import Kakarot_cairo1_helpers_class_hash
 from kakarot.state import State
 from utils.utils import Helpers
 from utils.array import slice
@@ -1011,7 +1011,7 @@ namespace CreateHelper {
             message_bytes8, message_len, message
         );
 
-        let (implementation) = Kakarot_precompiles_class_hash.read();
+        let (implementation) = Kakarot_cairo1_helpers_class_hash.read();
         let (message_hash) = ICairo1Helpers.library_call_keccak(
             class_hash=implementation,
             words_len=message_bytes8_len,
@@ -1047,7 +1047,7 @@ namespace CreateHelper {
             bytecode_bytes8, bytecode_len, bytecode
         );
 
-        let (implementation) = Kakarot_precompiles_class_hash.read();
+        let (implementation) = Kakarot_cairo1_helpers_class_hash.read();
         let (bytecode_hash) = ICairo1Helpers.library_call_keccak(
             class_hash=implementation,
             words_len=bytecode_bytes8_len,
diff --git a/src/kakarot/kakarot.cairo b/src/kakarot/kakarot.cairo
index 0012b03e8..49467306c 100644
--- a/src/kakarot/kakarot.cairo
+++ b/src/kakarot/kakarot.cairo
@@ -27,7 +27,7 @@ func constructor{syscall_ptr: felt*, pedersen_ptr: HashBuiltin*, range_check_ptr
     native_token_address: felt,
     account_contract_class_hash: felt,
     uninitialized_account_class_hash: felt,
-    precompiles_class_hash: felt,
+    cairo1_helpers_class_hash: felt,
     coinbase: felt,
     block_gas_limit: felt,
 ) {
@@ -36,7 +36,7 @@ func constructor{syscall_ptr: felt*, pedersen_ptr: HashBuiltin*, range_check_ptr
         native_token_address,
         account_contract_class_hash,
         uninitialized_account_class_hash,
-        precompiles_class_hash,
+        cairo1_helpers_class_hash,
         coinbase,
         block_gas_limit,
     );
diff --git a/src/kakarot/library.cairo b/src/kakarot/library.cairo
index 5ebb40d98..7a3967fff 100644
--- a/src/kakarot/library.cairo
+++ b/src/kakarot/library.cairo
@@ -16,7 +16,7 @@ from kakarot.storages import (
     Kakarot_account_contract_class_hash,
     Kakarot_base_fee,
     Kakarot_native_token_address,
-    Kakarot_precompiles_class_hash,
+    Kakarot_cairo1_helpers_class_hash,
     Kakarot_coinbase,
     Kakarot_prev_randao,
     Kakarot_block_gas_limit,
@@ -37,14 +37,14 @@ namespace Kakarot {
     // @param native_token_address The ERC20 contract used to emulate ETH.
     // @param account_contract_class_hash The clash hash of the contract account.
     // @param uninitialized_account_class_hash The class hash of the uninitialized account used for deterministic address calculation.
-    // @param precompiles_class_hash The precompiles class hash for precompiles not implemented in Kakarot.
+    // @param cairo1_helpers_class_hash The precompiles class hash for precompiles not implemented in Kakarot.
     // @param coinbase The EOA whose key is owned by the deployer (or known to be owned by Coinbase)
     func constructor{syscall_ptr: felt*, pedersen_ptr: HashBuiltin*, range_check_ptr}(
         owner: felt,
         native_token_address,
         account_contract_class_hash,
         uninitialized_account_class_hash,
-        precompiles_class_hash,
+        cairo1_helpers_class_hash,
         coinbase,
         block_gas_limit,
     ) {
@@ -52,7 +52,7 @@ namespace Kakarot {
         Kakarot_native_token_address.write(native_token_address);
         Kakarot_account_contract_class_hash.write(account_contract_class_hash);
         Kakarot_uninitialized_account_class_hash.write(uninitialized_account_class_hash);
-        Kakarot_precompiles_class_hash.write(precompiles_class_hash);
+        Kakarot_cairo1_helpers_class_hash.write(cairo1_helpers_class_hash);
         Kakarot_coinbase.write(coinbase);
         Kakarot_block_gas_limit.write(block_gas_limit);
         return ();
diff --git a/src/kakarot/precompiles/precompiles.cairo b/src/kakarot/precompiles/precompiles.cairo
index 96c4a3302..7d41a36e6 100644
--- a/src/kakarot/precompiles/precompiles.cairo
+++ b/src/kakarot/precompiles/precompiles.cairo
@@ -7,7 +7,7 @@ from starkware.cairo.common.alloc import alloc
 from starkware.cairo.common.memcpy import memcpy
 
 from kakarot.interfaces.interfaces import ICairo1Helpers
-from kakarot.storages import Kakarot_precompiles_class_hash
+from kakarot.storages import Kakarot_cairo1_helpers_class_hash
 from kakarot.errors import Errors
 from kakarot.precompiles.blake2f import PrecompileBlake2f
 from kakarot.precompiles.datacopy import PrecompileDataCopy
@@ -123,7 +123,7 @@ namespace Precompiles {
         output_len: felt, output: felt*, gas_used: felt, reverted: felt
     ) {
         alloc_locals;
-        let (implementation) = Kakarot_precompiles_class_hash.read();
+        let (implementation) = Kakarot_cairo1_helpers_class_hash.read();
         let (calldata: felt*) = alloc();
         assert [calldata] = evm_address;
         assert [calldata + 1] = input_len;
diff --git a/src/kakarot/storages.cairo b/src/kakarot/storages.cairo
index 236e5a5dd..2d5f1d644 100644
--- a/src/kakarot/storages.cairo
+++ b/src/kakarot/storages.cairo
@@ -5,7 +5,7 @@
 from starkware.cairo.common.uint256 import Uint256
 
 @storage_var
-func Kakarot_precompiles_class_hash() -> (res: felt) {
+func Kakarot_cairo1_helpers_class_hash() -> (res: felt) {
 }
 
 @storage_var
diff --git a/tests/fixtures/EVM.cairo b/tests/fixtures/EVM.cairo
index e2a850989..7d989f046 100644
--- a/tests/fixtures/EVM.cairo
+++ b/tests/fixtures/EVM.cairo
@@ -21,7 +21,7 @@ from kakarot.storages import (
     Kakarot_native_token_address,
     Kakarot_account_contract_class_hash,
     Kakarot_uninitialized_account_class_hash,
-    Kakarot_precompiles_class_hash,
+    Kakarot_cairo1_helpers_class_hash,
     Kakarot_coinbase,
     Kakarot_block_gas_limit,
 )
@@ -34,14 +34,14 @@ func constructor{syscall_ptr: felt*, pedersen_ptr: HashBuiltin*, range_check_ptr
     native_token_address: felt,
     account_contract_class_hash: felt,
     uninitialized_account_class_hash: felt,
-    precompiles_class_hash: felt,
+    cairo1_helpers_class_hash: felt,
     coinbase: felt,
     block_gas_limit: felt,
 ) {
     Kakarot_native_token_address.write(native_token_address);
     Kakarot_account_contract_class_hash.write(account_contract_class_hash);
     Kakarot_uninitialized_account_class_hash.write(uninitialized_account_class_hash);
-    Kakarot_precompiles_class_hash.write(precompiles_class_hash);
+    Kakarot_cairo1_helpers_class_hash.write(cairo1_helpers_class_hash);
     Kakarot_coinbase.write(coinbase);
     Kakarot_block_gas_limit.write(block_gas_limit);
     return ();
diff --git a/tests/src/kakarot/instructions/test_environmental_information.py b/tests/src/kakarot/instructions/test_environmental_information.py
index bb7ff2252..72041aa9a 100644
--- a/tests/src/kakarot/instructions/test_environmental_information.py
+++ b/tests/src/kakarot/instructions/test_environmental_information.py
@@ -148,7 +148,7 @@ def _pack_into_u64_words(self, bytecode):
             EXISTING_ACCOUNT_SN_ADDR,
         )
         @SyscallHandler.patch(
-            "Kakarot_precompiles_class_hash",
+            "Kakarot_cairo1_helpers_class_hash",
             CAIRO1_HELPERS_CLASS_HASH,
         )
         def test_extcodehash__should_push_hash(