diff --git a/tests/test_ecosystem.py b/tests/test_ecosystem.py
index 8631d90..d60672d 100644
--- a/tests/test_ecosystem.py
+++ b/tests/test_ecosystem.py
@@ -8,21 +8,21 @@ def test_gas_limit(fantom):
 
 
 # NOTE: None because we want to show the default is DYNAMIC
-@pytest.mark.parametrize("type", (None, 2, "0x2"))
-def test_create_transaction(fantom, type, eth_tester_provider):
-    tx = fantom.create_transaction(type=type)
+@pytest.mark.parametrize("tx_type", (None, 2, "0x2"))
+def test_create_transaction(fantom, tx_type, eth_tester_provider):
+    tx = fantom.create_transaction(type=tx_type)
     assert tx.type == TransactionType.DYNAMIC.value
     assert tx.gas_limit == eth_tester_provider.max_gas
 
 
 @pytest.mark.parametrize(
-    "type_",
+    "tx_type",
     (
         TransactionType.STATIC.value,
         TransactionType.DYNAMIC.value,
     ),
 )
-def test_encode_transaction(type_, fantom, eth_tester_provider):
+def test_encode_transaction(tx_type, fantom, eth_tester_provider):
     abi = MethodABI.parse_obj(
         {
             "type": "function",
@@ -33,5 +33,5 @@ def test_encode_transaction(type_, fantom, eth_tester_provider):
         }
     )
     address = "0x274b028b03A250cA03644E6c578D81f019eE1323"
-    actual = fantom.encode_transaction(address, abi, sender=address, type=type_)
+    actual = fantom.encode_transaction(address, abi, sender=address, type=tx_type)
     assert actual.gas_limit == eth_tester_provider.max_gas