diff --git a/pkgs/development/python-modules/caldav/default.nix b/pkgs/development/python-modules/caldav/default.nix
index 4403aff4125f..2ad6b596042d 100644
--- a/pkgs/development/python-modules/caldav/default.nix
+++ b/pkgs/development/python-modules/caldav/default.nix
@@ -70,6 +70,8 @@ buildPythonPackage rec {
     "test_rfc8764_test_conf"
   ];
 
+  __darwinAllowLocalNetworking = true;
+
   pythonImportsCheck = [ "caldav" ];
 
   meta = {
diff --git a/pkgs/development/python-modules/urllib3-future/default.nix b/pkgs/development/python-modules/urllib3-future/default.nix
index 9184b6a9b1c4..055139daed20 100644
--- a/pkgs/development/python-modules/urllib3-future/default.nix
+++ b/pkgs/development/python-modules/urllib3-future/default.nix
@@ -24,14 +24,14 @@
 
 buildPythonPackage rec {
   pname = "urllib3-future";
-  version = "2.17.903";
+  version = "2.18.901";
   pyproject = true;
 
   src = fetchFromGitHub {
     owner = "jawah";
     repo = "urllib3.future";
     tag = version;
-    hash = "sha256-tgAKjtYuVVjkxI6qC7/iFHv/DE+rGSw0+Dye73WTcis=";
+    hash = "sha256-y6DRN24U2vxLRcVw9w9E4FMlk71W44x7UYSJrS6hfuA=";
   };
 
   postPatch = ''