diff --git a/pkgs/by-name/gn/gnome-system-monitor/package.nix b/pkgs/by-name/gn/gnome-system-monitor/package.nix
index 71f395a5e5b7..dc8e4b7e867e 100644
--- a/pkgs/by-name/gn/gnome-system-monitor/package.nix
+++ b/pkgs/by-name/gn/gnome-system-monitor/package.nix
@@ -7,6 +7,7 @@
   gtkmm4,
   libxml2,
   bash,
+  catch2_3,
   gtk4,
   libadwaita,
   glib,
@@ -25,11 +26,11 @@
 
 stdenv.mkDerivation (finalAttrs: {
   pname = "gnome-system-monitor";
-  version = "47.1";
+  version = "48.rc";
 
   src = fetchurl {
     url = "mirror://gnome/sources/gnome-system-monitor/${lib.versions.major finalAttrs.version}/gnome-system-monitor-${finalAttrs.version}.tar.xz";
-    hash = "sha256-08VxT9kfp/BdZ3XmeXzNqzFJ8THRqndqM1LirdsRDwE=";
+    hash = "sha256-hm3Sxydjf2dTcF0WpW/GZ6sqakgJ8X75N0UuHFRURMs=";
   };
 
   patches = [
@@ -49,6 +50,7 @@ stdenv.mkDerivation (finalAttrs: {
 
   buildInputs = [
     bash
+    catch2_3
     gtk4
     libadwaita
     glib