diff --git a/pkgs/by-name/ar/arc-browser/package.nix b/pkgs/by-name/ar/arc-browser/package.nix
index ebe4fc34719f..e365130286dd 100644
--- a/pkgs/by-name/ar/arc-browser/package.nix
+++ b/pkgs/by-name/ar/arc-browser/package.nix
@@ -6,6 +6,7 @@
   writeShellApplication,
   curl,
   common-updater-scripts,
+  xmlstarlet,
 }:
 
 stdenvNoCC.mkDerivation (finalAttrs: {
@@ -37,14 +38,16 @@ stdenvNoCC.mkDerivation (finalAttrs: {
     runtimeInputs = [
       curl
       common-updater-scripts
+      xmlstarlet
     ];
     text = ''
-      redirect_url="$(curl -s -L -f "https://releases.arc.net/release/Arc-latest.dmg" -o /dev/null -w '%{url_effective}')"
-      # The url scheme is: https://releases.arc.net/release/Arc-1.23.4-56789.dmg
-      # We strip everything before 'Arc-' and after '.dmg'
-      version="''${redirect_url##*/Arc-}"
-      version="''${version%.dmg}"
-      update-source-version arc-browser "$version" --file=./pkgs/by-name/ar/arc-browser/package.nix
+      latest_version_string="$(curl -s "https://releases.arc.net/updates.xml" | xmlstarlet sel -N sparkle="http://www.andymatuschak.org/xml-namespaces/sparkle" -t -v "//item[1]/sparkle:shortVersionString" -n)"
+      version_part="''${latest_version_string%% (*}"
+      build_part="''${latest_version_string##*\(}"
+      build_part="''${build_part%\)*}"
+      version="''${version_part}-''${build_part}"
+
+      update-source-version arc-browser "$version"
     '';
   });