diff --git a/pkgs/by-name/fz/fzf-git-sh/package.nix b/pkgs/by-name/fz/fzf-git-sh/package.nix
index 1494216f03e4..cda761d9f11d 100644
--- a/pkgs/by-name/fz/fzf-git-sh/package.nix
+++ b/pkgs/by-name/fz/fzf-git-sh/package.nix
@@ -14,6 +14,7 @@
   tmux,
   util-linux,
   xdg-utils,
+  unstableGitUpdater,
 }:
 
 stdenv.mkDerivation rec {
@@ -55,6 +56,8 @@ stdenv.mkDerivation rec {
     install -D fzf-git.sh $out/share/${pname}/fzf-git.sh
   '';
 
+  passthru.updateScript = unstableGitUpdater { };
+
   meta = with lib; {
     homepage = "https://github.com/junegunn/fzf-git.sh";
     description = "Bash and zsh key bindings for Git objects, powered by fzf";