diff --git a/pkgs/desktops/gnome/apps/gnome-calendar/default.nix b/pkgs/desktops/gnome/apps/gnome-calendar/default.nix
index a4327fa760c0..a457b9d9d266 100644
--- a/pkgs/desktops/gnome/apps/gnome-calendar/default.nix
+++ b/pkgs/desktops/gnome/apps/gnome-calendar/default.nix
@@ -1,7 +1,6 @@
 { stdenv
 , lib
 , fetchurl
-, fetchpatch
 , meson
 , ninja
 , pkg-config
@@ -9,7 +8,6 @@
 , libgweather
 , geoclue2
 , geocode-glib
-, python3
 , gettext
 , libxml2
 , gnome
@@ -24,21 +22,13 @@
 
 stdenv.mkDerivation rec {
   pname = "gnome-calendar";
-  version = "42.beta";
+  version = "42.rc";
 
   src = fetchurl {
     url = "mirror://gnome/sources/${pname}/${lib.versions.major version}/${pname}-${version}.tar.xz";
-    sha256 = "TTNcGt7tjqLjSuHmt5uVtlFpaHsmjjlsek4l9+rZdlE=";
+    sha256 = "1k2ZG3WbwvdvjJQFicd9gb2oEergo5+9kyoIV/R0eZQ=";
   };
 
-  patches = [
-    # Fix postinstall referring to gtk-update-icon-cache
-    (fetchpatch {
-      url = "https://gitlab.gnome.org/GNOME/gnome-calendar/-/commit/b7e84c432664f76f10680c04781ab5c3cafdd247.patch";
-      sha256 = "ahJwspsnU6uT0mc1W+aWPWgp/9+lVF8H+dAK/IV7qgM=";
-    })
-  ];
-
   nativeBuildInputs = [
     meson
     ninja
@@ -46,7 +36,6 @@ stdenv.mkDerivation rec {
     gettext
     libxml2
     wrapGAppsHook4
-    python3
   ];
 
   buildInputs = [