diff --git a/tests/conftest.py b/tests/conftest.py
index af7e47993..f188c9d8e 100644
--- a/tests/conftest.py
+++ b/tests/conftest.py
@@ -1,5 +1,9 @@
+import os
+
 import pytest
 
+os.environ["NO_PROXY"] = "127.0.0.1"
+
 
 @pytest.fixture
 def anyio_backend():