diff --git a/pkgs/development/python-modules/recurring-ical-events/default.nix b/pkgs/development/python-modules/recurring-ical-events/default.nix
index e4e27e15c306..e1224411885e 100644
--- a/pkgs/development/python-modules/recurring-ical-events/default.nix
+++ b/pkgs/development/python-modules/recurring-ical-events/default.nix
@@ -16,7 +16,7 @@
 
 buildPythonPackage rec {
   pname = "recurring-ical-events";
-  version = "3.3.3";
+  version = "3.3.4";
 
   disabled = pythonOlder "3.8";
 
@@ -26,13 +26,11 @@ buildPythonPackage rec {
     owner = "niccokunzmann";
     repo = "python-recurring-ical-events";
     rev = "refs/tags/v${version}";
-    hash = "sha256-gEatTTpRiqtDAn+JtoJuVHPYKmEkc5saw3hy4ZYZfX8=";
+    hash = "sha256-3KlmJJmak3X9adUlcmclnCv9D1Ddr+woFokrinZBYoE=";
   };
 
   build-system = [ setuptools ];
 
-  pythonRelaxDeps = [ "x-wr-timezone" ];
-
   dependencies = [
     icalendar
     python-dateutil