diff --git a/pkgs/by-name/qt/qtorganizer-mkcal/package.nix b/pkgs/by-name/qt/qtorganizer-mkcal/package.nix
index 7768bafc85a4..15451c6981c4 100644
--- a/pkgs/by-name/qt/qtorganizer-mkcal/package.nix
+++ b/pkgs/by-name/qt/qtorganizer-mkcal/package.nix
@@ -13,13 +13,13 @@
 
 stdenv.mkDerivation (finalAttrs: {
   pname = "qtorganizer-mkcal";
-  version = "0-unstable-2025-04-24";
+  version = "0-unstable-2026-06-06";
 
   src = fetchFromGitHub {
     owner = "dcaliste";
     repo = "qtorganizer-mkcal";
-    rev = "45906b1df8ad758a824369873f423d9e0c457fbf";
-    hash = "sha256-sgYCO8LxBFhMkjGnKVvOx2d4hyw9Oa5lbu6LKhuwl8s=";
+    rev = "6efa089553ccc3c44ada8fd2fe1349a004d4f619";
+    hash = "sha256-vycfq5meq+u7Ntv0n1XrcqlZfjU7flfQAi17vZId6Ww=";
   };
 
   postPatch = ''