diff --git a/pkgs/development/python-modules/pyorc/default.nix b/pkgs/development/python-modules/pyorc/default.nix
index 6bf2936eb817..efbf3f9cdce9 100644
--- a/pkgs/development/python-modules/pyorc/default.nix
+++ b/pkgs/development/python-modules/pyorc/default.nix
@@ -22,6 +22,13 @@ buildPythonPackage rec {
     hash = "sha256-2w3Qh6g+Yg+D10kTow9YR6B6FhQ+z2DvgDy5GtYxH4g=";
   };
 
+  postPatch = ''
+    substituteInPlace pyproject.toml \
+      --replace-fail \
+        '"pybind11>2.6.0,<3.0"' \
+        '"pybind11>2.6.0"'
+  '';
+
   build-system = [
     pybind11
     setuptools