diff --git a/pkgs/development/python-modules/ical/default.nix b/pkgs/development/python-modules/ical/default.nix
index c472048d38e5..734dbc1bbc76 100644
--- a/pkgs/development/python-modules/ical/default.nix
+++ b/pkgs/development/python-modules/ical/default.nix
@@ -42,6 +42,9 @@ buildPythonPackage rec {
     pytestCheckHook
   ];
 
+  # https://github.com/allenporter/ical/issues/136
+  disabledTests = [ "test_all_zoneinfo" ];
+
   pythonImportsCheck = [
     "ical"
   ];