diff --git a/pkgs/desktops/gnome/core/baobab/default.nix b/pkgs/desktops/gnome/core/baobab/default.nix
index d27c4947c33b..128e405ccf0d 100644
--- a/pkgs/desktops/gnome/core/baobab/default.nix
+++ b/pkgs/desktops/gnome/core/baobab/default.nix
@@ -18,11 +18,11 @@
 
 stdenv.mkDerivation rec {
   pname = "baobab";
-  version = "44.0";
+  version = "45.alpha";
 
   src = fetchurl {
     url = "mirror://gnome/sources/${pname}/${lib.versions.major version}/${pname}-${version}.tar.xz";
-    sha256 = "hFtju5Ej10VoyBJsVxu8dCc0g/+SAXmizx7du++hv8A=";
+    sha256 = "0q3Ui/eSFWMtsbkbrlZXLaaGrDxdRb1V/hiGT2Fj888=";
   };
 
   nativeBuildInputs = [