diff --git a/pkgs/development/python-modules/ical/default.nix b/pkgs/development/python-modules/ical/default.nix
index 3ad0df116de4..88dee1d87ced 100644
--- a/pkgs/development/python-modules/ical/default.nix
+++ b/pkgs/development/python-modules/ical/default.nix
@@ -17,7 +17,7 @@
 
 buildPythonPackage rec {
   pname = "ical";
-  version = "10.0.4";
+  version = "11.0.0";
   pyproject = true;
 
   disabled = pythonOlder "3.11";
@@ -26,7 +26,7 @@ buildPythonPackage rec {
     owner = "allenporter";
     repo = "ical";
     tag = version;
-    hash = "sha256-T58A2oBDD97C5Jz5WlbAJYOnoJzP+jAryKb5Oim4TuU=";
+    hash = "sha256-jn4xPwnJ/RQNTItYv4QY54UejayI0MmDhKZtg2lkpr8=";
   };
 
   build-system = [ setuptools ];