diff --git a/pkgs/development/python-modules/flower/default.nix b/pkgs/development/python-modules/flower/default.nix
index 0d736dac49e7..54da81e19e33 100644
--- a/pkgs/development/python-modules/flower/default.nix
+++ b/pkgs/development/python-modules/flower/default.nix
@@ -33,6 +33,8 @@ buildPythonPackage rec {
     tornado
   ];
 
+  __darwinAllowLocalNetworking = true;
+
   nativeCheckInputs = [
     pytestCheckHook
   ];