diff --git a/pkgs/development/python-modules/cachecontrol/default.nix b/pkgs/development/python-modules/cachecontrol/default.nix
index 529975f1080b..c5c7128f7223 100644
--- a/pkgs/development/python-modules/cachecontrol/default.nix
+++ b/pkgs/development/python-modules/cachecontrol/default.nix
@@ -18,6 +18,8 @@ buildPythonPackage rec {
 
   disabled = pythonOlder "3.6";
 
+  __darwinAllowLocalNetworking = true;
+
   src = fetchFromGitHub {
     owner = "ionrock";
     repo = pname;