diff --git a/pkgs/flask-multipass/default.nix b/pkgs/flask-multipass/default.nix
index 2a6f410..38a5bd6 100644
--- a/pkgs/flask-multipass/default.nix
+++ b/pkgs/flask-multipass/default.nix
@@ -25,6 +25,11 @@ buildPythonPackage rec {
     hash = "sha256-1SfyCpa1j7a1emhruVLBtXwDr6BisnvUnTA1ioQmGzQ=";
   };
 
+  postPatch = ''
+    substituteInPlace pyproject.toml \
+      --replace-fail "hatchling==1.25.0" "hatchling"
+  '';
+
   build-system = [ hatchling ];
 
   dependencies = [