diff --git a/pkgs/development/python-modules/uvicorn/default.nix b/pkgs/development/python-modules/uvicorn/default.nix
index c184e62bfe78..36e8b12929e0 100644
--- a/pkgs/development/python-modules/uvicorn/default.nix
+++ b/pkgs/development/python-modules/uvicorn/default.nix
@@ -51,6 +51,8 @@ buildPythonPackage rec {
 
   doCheck = !stdenv.isDarwin;
 
+  __darwinAllowLocalNetworking = true;
+
   pytestFlagsArray = [
     # watchgod required the watchgod package, which isn't available in nixpkgs
     "--ignore=tests/supervisors/test_reload.py"