diff --git a/pkgs/by-name/py/pyhanko-cli/package.nix b/pkgs/by-name/py/pyhanko-cli/package.nix
index ea5188efdcdf..e3f2c8c3ba06 100644
--- a/pkgs/by-name/py/pyhanko-cli/package.nix
+++ b/pkgs/by-name/py/pyhanko-cli/package.nix
@@ -23,10 +23,12 @@ python3Packages.buildPythonApplication (finalAttrs: {
     substituteInPlace src/pyhanko/cli/version.py \
       --replace-fail "0.0.0.dev1" "${finalAttrs.version}" \
       --replace-fail "(0, 0, 0, 'dev1')" "tuple(\"${finalAttrs.version}\".split(\".\"))"
-    substituteInPlace pyproject.toml \
-      --replace-fail "0.0.0.dev1" "${finalAttrs.version}"
   '';
 
+  nativeBuildInputs = [
+    python3Packages.pyprojectVersionPatchHook
+  ];
+
   build-system = [ python3Packages.setuptools ];
 
   dependencies =