diff --git a/pkgs/development/libraries/xdg-desktop-portal-gnome/default.nix b/pkgs/development/libraries/xdg-desktop-portal-gnome/default.nix
index c25bc2f512ba..a8d7c1552433 100644
--- a/pkgs/development/libraries/xdg-desktop-portal-gnome/default.nix
+++ b/pkgs/development/libraries/xdg-desktop-portal-gnome/default.nix
@@ -20,11 +20,11 @@
 
 stdenv.mkDerivation rec {
   pname = "xdg-desktop-portal-gnome";
-  version = "44.2";
+  version = "45.beta";
 
   src = fetchurl {
     url = "mirror://gnome/sources/${pname}/${lib.versions.major version}/${pname}-${version}.tar.xz";
-    sha256 = "UO0arCkDA+oLxchAqcEWWRhUarSnOiTFLcqicHK1/yE=";
+    sha256 = "ABoS+EgmZwUHaiBgVQO9P/gkzhdefpcOTIpdJ4IokNM=";
   };
 
   nativeBuildInputs = [