diff --git a/pkgs/development/python-modules/ical/default.nix b/pkgs/development/python-modules/ical/default.nix
index e1bed7184287..bb4668c5cbed 100644
--- a/pkgs/development/python-modules/ical/default.nix
+++ b/pkgs/development/python-modules/ical/default.nix
@@ -16,7 +16,7 @@
 
 buildPythonPackage rec {
   pname = "ical";
-  version = "4.2.2";
+  version = "4.2.3";
   format = "setuptools";
 
   disabled = pythonOlder "3.9";
@@ -25,7 +25,7 @@ buildPythonPackage rec {
     owner = "allenporter";
     repo = pname;
     rev = "refs/tags/${version}";
-    hash = "sha256-YvBcfrZiHTornCEAFhNLN/siNvl119pD+o+0yNsRBA8=";
+    hash = "sha256-Af08Xnf5PNWTzRfRENSixVlfcqrvhSuutGxoDzHG4dk=";
   };
 
   propagatedBuildInputs = [