diff --git a/python/bench.nix b/python/bench.nix
index ad4e484..ff236f7 100644
--- a/python/bench.nix
+++ b/python/bench.nix
@@ -32,9 +32,12 @@ buildPythonPackage rec {
   };
 
   format = "pyproject";
+  postPatch = ''
+    substituteInPlace pyproject.toml --replace-fail 'hatchling>=1.6.0,<=1.21.0' 'hatchling<=1.24.2'
+  '';
 
   nativeBuildInputs = [ pythonRelaxDepsHook ];
-  pythonRelaxDeps = [ "jinja2" "python-crontab" "semantic-version" "hatchling" ];
+  pythonRelaxDeps = [ "jinja2" "python-crontab" "semantic-version" ];
 
   buildInputs = [
     hatchling