diff --git a/pkgs/by-name/to/tokei/package.nix b/pkgs/by-name/to/tokei/package.nix
index 0564e498891f..7205d245dd54 100644
--- a/pkgs/by-name/to/tokei/package.nix
+++ b/pkgs/by-name/to/tokei/package.nix
@@ -6,6 +6,7 @@
   libiconv,
   zlib,
   versionCheckHook,
+  nix-update-script,
 }:
 
 rustPlatform.buildRustPackage (finalAttrs: {
@@ -33,6 +34,8 @@ rustPlatform.buildRustPackage (finalAttrs: {
   versionCheckProgramArg = "--version";
   doInstallCheck = true;
 
+  passthru.updateScript = nix-update-script { extraArgs = [ "--version=unstable" ]; };
+
   meta = {
     description = "Count your code, quickly";
     longDescription = ''