diff --git a/pkgs/development/libraries/mutest/default.nix b/pkgs/development/libraries/mutest/default.nix
index f2d3a559553..f8e02b65774 100644
--- a/pkgs/development/libraries/mutest/default.nix
+++ b/pkgs/development/libraries/mutest/default.nix
@@ -1,20 +1,22 @@
-{ lib, stdenv
+{ stdenv
+, lib
 , fetchFromGitHub
 , meson
 , ninja
+, unstableGitUpdater
 }:
 
 stdenv.mkDerivation {
   pname = "mutest";
-  version = "unstable-2019-08-26";
+  version = "0-unstable-2023-02-24";
 
   outputs = [ "out" "dev" ];
 
   src = fetchFromGitHub {
     owner = "ebassi";
     repo = "mutest";
-    rev = "e6246c9ae4f36ffe8c021f0a80438f6c7a6efa3a";
-    sha256 = "0gdqwq6fvk06wld4rhnw5752hahrvhd69zrci045x25rwx90x26q";
+    rev = "18a20071773f7c4b75e82a931ef9b916b273b3e5";
+    sha256 = "z0kASte0/I48Fgxhblu24MjGHidWomhfFOhfStGtPn4=";
   };
 
   nativeBuildInputs = [
@@ -24,8 +26,12 @@ stdenv.mkDerivation {
 
   doCheck = true;
 
+  passthru = {
+    updateScript = unstableGitUpdater { };
+  };
+
   meta = with lib; {
-    homepage = "https://ebassi.github.io/mutest/mutest.md.html";
+    homepage = "https://github.com/ebassi/mutest";
     description = "A BDD testing framework for C, inspired by Mocha";
     license = licenses.mit;
     maintainers = with maintainers; [ jtojnar ];