diff --git a/deposit_contract/tests/contracts/test_deposit.py b/deposit_contract/tests/contracts/test_deposit.py
index 58e4158a3..94c7b29d1 100644
--- a/deposit_contract/tests/contracts/test_deposit.py
+++ b/deposit_contract/tests/contracts/test_deposit.py
@@ -21,101 +21,102 @@ from eth2spec.utils.ssz.ssz_impl import (
 )
 
 
-# @pytest.fixture
-# def deposit_input():
-#     """
-#     pubkey: bytes[48]
-#     withdrawal_credentials: bytes[32]
-#     signature: bytes[96]
-#     """
-#     return (
-#         b'\x11' * 48,
-#         b'\x22' * 32,
-#         b'\x33' * 96,
-#     )
+@pytest.fixture
+def deposit_input():
+    """
+    pubkey: bytes[48]
+    withdrawal_credentials: bytes[32]
+    signature: bytes[96]
+    """
+    return (
+        b'\x11' * 48,
+        b'\x22' * 32,
+        b'\x33' * 96,
+    )
 
 
-# @pytest.mark.parametrize(
-#     'success,deposit_amount',
-#     [
-#         (True, FULL_DEPOSIT_AMOUNT),
-#         (True, MIN_DEPOSIT_AMOUNT),
-#         (False, MIN_DEPOSIT_AMOUNT - 1),
-#         (True, FULL_DEPOSIT_AMOUNT + 1)
-#     ]
-# )
-# def test_deposit_amount(registration_contract,
-#                         w3,
-#                         success,
-#                         deposit_amount,
-#                         assert_tx_failed,
-#                         deposit_input):
-#     call = registration_contract.functions.deposit(*deposit_input)
-#     if success:
-#         assert call.transact({"value": deposit_amount * eth_utils.denoms.gwei})
-#     else:
-#         assert_tx_failed(
-#             lambda: call.transact({"value": deposit_amount * eth_utils.denoms.gwei})
-#         )
+@pytest.mark.parametrize(
+    'success,deposit_amount',
+    [
+        (True, FULL_DEPOSIT_AMOUNT),
+        (True, MIN_DEPOSIT_AMOUNT),
+        (False, MIN_DEPOSIT_AMOUNT - 1),
+        (True, FULL_DEPOSIT_AMOUNT + 1)
+    ]
+)
+def test_deposit_amount(registration_contract,
+                        w3,
+                        success,
+                        deposit_amount,
+                        assert_tx_failed,
+                        deposit_input):
+    call = registration_contract.functions.deposit(*deposit_input)
+    if success:
+        assert call.transact({"value": deposit_amount * eth_utils.denoms.gwei})
+    else:
+        assert_tx_failed(
+            lambda: call.transact({"value": deposit_amount * eth_utils.denoms.gwei})
+        )
 
 
-# @pytest.mark.parametrize(
-#     'invalid_pubkey,invalid_withdrawal_credentials,invalid_signature,success',
-#     [
-#         (False, False, False, True),
-#         (True, False, False, False),
-#         (False, True, False, False),
-#         (False, False, True, False),
-#     ]
-# )
-# def test_deposit_inputs(registration_contract,
-#                         w3,
-#                         assert_tx_failed,
-#                         deposit_input,
-#                         invalid_pubkey,
-#                         invalid_withdrawal_credentials,
-#                         invalid_signature,
-#                         success):
-#     pubkey = deposit_input[0][2:] if invalid_pubkey else deposit_input[0]
-#     if invalid_withdrawal_credentials:  # this one is different to satisfy linter
-#         withdrawal_credentials = deposit_input[1][2:]
-#     else:
-#         withdrawal_credentials = deposit_input[1]
-#     signature = deposit_input[2][2:] if invalid_signature else deposit_input[2]
+@pytest.mark.parametrize(
+    'invalid_pubkey,invalid_withdrawal_credentials,invalid_signature,success',
+    [
+        (False, False, False, True),
+        (True, False, False, False),
+        (False, True, False, False),
+        (False, False, True, False),
+    ]
+)
+def test_deposit_inputs(registration_contract,
+                        w3,
+                        assert_tx_failed,
+                        deposit_input,
+                        invalid_pubkey,
+                        invalid_withdrawal_credentials,
+                        invalid_signature,
+                        success):
+    pubkey = deposit_input[0][2:] if invalid_pubkey else deposit_input[0]
+    if invalid_withdrawal_credentials:  # this one is different to satisfy linter
+        withdrawal_credentials = deposit_input[1][2:]
+    else:
+        withdrawal_credentials = deposit_input[1]
+    signature = deposit_input[2][2:] if invalid_signature else deposit_input[2]
 
-#     call = registration_contract.functions.deposit(
-#         pubkey,
-#         withdrawal_credentials,
-#         signature,
-#     )
-#     if success:
-#         assert call.transact({"value": FULL_DEPOSIT_AMOUNT * eth_utils.denoms.gwei})
-#     else:
-#         assert_tx_failed(
-#             lambda: call.transact({"value": FULL_DEPOSIT_AMOUNT * eth_utils.denoms.gwei})
-#         )
+    call = registration_contract.functions.deposit(
+        pubkey,
+        withdrawal_credentials,
+        signature,
+    )
+    if success:
+        assert call.transact({"value": FULL_DEPOSIT_AMOUNT * eth_utils.denoms.gwei})
+    else:
+        assert_tx_failed(
+            lambda: call.transact({"value": FULL_DEPOSIT_AMOUNT * eth_utils.denoms.gwei})
+        )
 
 
-# def test_deposit_log(registration_contract, a0, w3, deposit_input):
-#     log_filter = registration_contract.events.Deposit.createFilter(
-#         fromBlock='latest',
-#     )
+def test_deposit_log(registration_contract, a0, w3, deposit_input):
+    log_filter = registration_contract.events.Deposit.createFilter(
+        fromBlock='latest',
+    )
 
-#     deposit_amount_list = [randint(MIN_DEPOSIT_AMOUNT, FULL_DEPOSIT_AMOUNT * 2) for _ in range(3)]
-#     for i in range(3):
-#         registration_contract.functions.deposit(
-#             *deposit_input,
-#         ).transact({"value": deposit_amount_list[i] * eth_utils.denoms.gwei})
+    deposit_amount_list = [randint(MIN_DEPOSIT_AMOUNT, FULL_DEPOSIT_AMOUNT * 2) for _ in range(3)]
+    for i in range(3):
+        registration_contract.functions.deposit(
+            *deposit_input,
+        ).transact({"value": deposit_amount_list[i] * eth_utils.denoms.gwei})
 
-#         logs = log_filter.get_new_entries()
-#         assert len(logs) == 1
-#         log = logs[0]['args']
+        logs = log_filter.get_new_entries()
+        assert len(logs) == 1
+        log = logs[0]['args']
+
+        assert log['pubkey'] == deposit_input[0]
+        assert log['withdrawal_credentials'] == deposit_input[1]
+        assert log['amount'] == deposit_amount_list[i].to_bytes(8, 'little')
+        assert log['signature'] == deposit_input[2]
+        assert log['index'] == i.to_bytes(8, 'little')
 
-#         assert log['pubkey'] == deposit_input[0]
-#         assert log['withdrawal_credentials'] == deposit_input[1]
-#         assert log['amount'] == deposit_amount_list[i].to_bytes(8, 'little')
-#         assert log['signature'] == deposit_input[2]
-#         assert log['index'] == i.to_bytes(8, 'little')
 
 def test_deposit_tree(registration_contract, w3, assert_tx_failed, deposit_input):
     log_filter = registration_contract.events.Deposit.createFilter(