diff --git a/tests/contracts/test_contract_estimateGas.py b/tests/contracts/test_contract_estimateGas.py
index daab903..24f7f4f 100644
--- a/tests/contracts/test_contract_estimateGas.py
+++ b/tests/contracts/test_contract_estimateGas.py
@@ -35,7 +35,7 @@ def test_needs_skipping(web3):
     if not isinstance(web3.currentProvider, TestRPCProvider):
         pytest.skip("N/A")
     with pytest.raises(ValueError):
-        web3.eth.estimateGas()
+        web3.eth.estimateGas({})
 
 
 def test_contract_estimateGas(web3, math_contract):
diff --git a/tests/eth-module/test_eth_estimateGas.py b/tests/eth-module/test_eth_estimateGas.py
index 3ba6b20..b2da582 100644
--- a/tests/eth-module/test_eth_estimateGas.py
+++ b/tests/eth-module/test_eth_estimateGas.py
@@ -35,7 +35,7 @@ def test_needs_skipping(web3):
     if not isinstance(web3.currentProvider, TestRPCProvider):
         pytest.skip("N/A")
     with pytest.raises(ValueError):
-        web3.eth.estimateGas()
+        web3.eth.estimateGas({})
 
 
 def test_eth_estimateGas(web3, math_contract):