diff --git a/pkgs/by-name/ar/arftracksat/package.nix b/pkgs/by-name/ar/arftracksat/package.nix
index 38c1f53cd6c7..a4199fc3f5ad 100644
--- a/pkgs/by-name/ar/arftracksat/package.nix
+++ b/pkgs/by-name/ar/arftracksat/package.nix
@@ -14,7 +14,7 @@
 
 stdenv.mkDerivation {
   pname = "arftracksat";
-  version = "unstable-2025-09-15";
+  version = "1.0-unstable-2025-09-15";
 
   src = fetchFromGitHub {
     owner = "arf20";