diff --git a/pkgs/development/python-modules/grpclib/default.nix b/pkgs/development/python-modules/grpclib/default.nix
index bb01d67bddf3..675f3f95439e 100644
--- a/pkgs/development/python-modules/grpclib/default.nix
+++ b/pkgs/development/python-modules/grpclib/default.nix
@@ -44,6 +44,8 @@ buildPythonPackage rec {
     certifi
   ];
 
+  __darwinAllowLocalNetworking = true;
+
   pythonImportsCheck = [ "grpclib" ];
 
   meta = {