diff --git a/src/Dispatcher.cxx b/src/Dispatcher.cxx
index db38857..c2153eb 100644
--- a/src/Dispatcher.cxx
+++ b/src/Dispatcher.cxx
@@ -484,7 +484,12 @@ bool CPyCppyy::InsertDispatcher(CPPScope* klass, PyObject* bases, PyObject* dct,
 // Python class to keep the inheritance tree intact)
     for (const auto& name : protected_names) {
          PyObject* disp_dct = PyObject_GetAttr(disp_proxy, PyStrings::gDict);
+#if PY_VERSION_HEX < 0x30d00f0
          PyObject* pyf = PyMapping_GetItemString(disp_dct, (char*)name.c_str());
+#else
+         PyObject* pyf = nullptr;
+         PyMapping_GetOptionalItemString(disp_dct, (char*)name.c_str(), &pyf);
+#endif
          if (pyf) {
              PyObject_SetAttrString((PyObject*)klass, (char*)name.c_str(), pyf);
              Py_DECREF(pyf);