diff --git a/deposit_contract/tests/contracts/conftest.py b/deposit_contract/tests/contracts/conftest.py
index b8b488abe..d4c7da9aa 100644
--- a/deposit_contract/tests/contracts/conftest.py
+++ b/deposit_contract/tests/contracts/conftest.py
@@ -62,26 +62,6 @@ def registration_contract(w3, tester):
     return registration_deployed
 
 
-@pytest.fixture(params=[0, 1, 2])
-def modified_registration_contract(
-        request,
-        w3,
-        tester):
-    registration_code = get_deposit_contract_code()
-    contract_bytecode = compiler.compile_code(registration_code)['bytecode']
-    contract_abi = compiler.mk_full_signature(registration_code)
-    registration = w3.eth.contract(
-        abi=contract_abi,
-        bytecode=contract_bytecode)
-    tx_hash = registration.constructor().transact()
-    tx_receipt = w3.eth.waitForTransactionReceipt(tx_hash)
-    registration_deployed = w3.eth.contract(
-        address=tx_receipt.contractAddress,
-        abi=contract_abi
-    )
-    return registration_deployed
-
-
 @pytest.fixture
 def assert_tx_failed(tester):
     def assert_tx_failed(function_to_test, exception=eth_tester.exceptions.TransactionFailed):