diff --git a/pkgs/development/python-modules/pytest-services/default.nix b/pkgs/development/python-modules/pytest-services/default.nix
index a8a0b69f363b..537e06b5e04b 100644
--- a/pkgs/development/python-modules/pytest-services/default.nix
+++ b/pkgs/development/python-modules/pytest-services/default.nix
@@ -66,6 +66,9 @@ buildPythonPackage rec {
     "test_xvfb"
   ];
 
+  # Tests use sockets
+  __darwinAllowLocalNetworking = true;
+
   meta = with lib; {
     description = "Services plugin for pytest testing framework";
     homepage = "https://github.com/pytest-dev/pytest-services";