diff --git a/pkgs/by-name/mc/mcumgr-client/package.nix b/pkgs/by-name/mc/mcumgr-client/package.nix
index d80bb6231ec1..5fa45ca23af6 100644
--- a/pkgs/by-name/mc/mcumgr-client/package.nix
+++ b/pkgs/by-name/mc/mcumgr-client/package.nix
@@ -2,7 +2,6 @@
   lib,
   rustPlatform,
   fetchFromGitHub,
-  nix-update-script,
   pkg-config,
   udev,
   stdenv,
@@ -24,8 +23,6 @@ rustPlatform.buildRustPackage rec {
     lockFile = ./Cargo.lock;
   };
 
-  passthru.updateScript = nix-update-script { };
-
   postPatch = ''
     ln -s ${./Cargo.lock} Cargo.lock
   '';