diff --git a/pkgs/development/libraries/gnome-desktop/default.nix b/pkgs/development/libraries/gnome-desktop/default.nix
index f3f221745b67..ba2fb9573b06 100644
--- a/pkgs/development/libraries/gnome-desktop/default.nix
+++ b/pkgs/development/libraries/gnome-desktop/default.nix
@@ -27,13 +27,13 @@
 
 stdenv.mkDerivation rec {
   pname = "gnome-desktop";
-  version = "42.alpha.1";
+  version = "42.beta";
 
   outputs = [ "out" "dev" "devdoc" ];
 
   src = fetchurl {
     url = "mirror://gnome/sources/gnome-desktop/${lib.versions.major version}/${pname}-${version}.tar.xz";
-    sha256 = "sha256-lxUTBDVAeqgptNWdwDb/XKOSTytO4X7FMBf2ar2gX+w=";
+    sha256 = "sha256-l6hYliu9Q7pS9tQPVfMdKdwvTQYV2NbXoYzBcnzIiKY=";
   };
 
   patches = [