diff --git a/tests/conftest.py b/tests/conftest.py
index 02ea229..449d7af 100644
--- a/tests/conftest.py
+++ b/tests/conftest.py
@@ -1,6 +1,7 @@
 from unittest.mock import MagicMock, patch
 from eth_account import Account
 import pytest
+import requests
 from vertex_protocol.client import VertexClient, create_vertex_client
 from vertex_protocol.contracts import VertexContractsContext
 from vertex_protocol.engine_client import EngineClient
@@ -190,13 +191,13 @@ def link_signer_params(senders: list[str]) -> dict:
 
 @pytest.fixture
 def mock_post() -> MagicMock:
-    with patch("requests.post") as mock_post:
+    with patch.object(requests.Session, "post") as mock_post:
         yield mock_post
 
 
 @pytest.fixture
 def mock_get() -> MagicMock:
-    with patch("requests.get") as mock_post:
+    with patch.object(requests.Session, "get") as mock_post:
         yield mock_post
 
 
diff --git a/vertex_protocol/utils/backend.py b/vertex_protocol/utils/backend.py
index 29ba9dd..b79aa9b 100644
--- a/vertex_protocol/utils/backend.py
+++ b/vertex_protocol/utils/backend.py
@@ -6,9 +6,9 @@ class VertexBackendURL(StrEnum):
 
     SEPOLIA_TESTNET_GATEWAY = "https://gateway.sepolia-test.vertexprotocol.com/v1"
     SEPOLIA_TESTNET_INDEXER = "https://archive.sepolia-test.vertexprotocol.com/v1"
-    
+
     MAINNET_GATEWAY = "https://gateway.prod.vertexprotocol.com/v1"
     MAINNET_INDEXER = "https://archive.prod.vertexprotocol.com/v1"
-    
+
     DEVNET_GATEWAY = "http://localhost:80"
     DEVNET_INDEXER = "http://localhost:8000"