diff --git a/Include/dictobject.h b/Include/dictobject.h
index 17262fe..320f9ec 100644
--- a/Include/dictobject.h
+++ b/Include/dictobject.h
@@ -45,9 +45,9 @@
 #define PyDict_Check(op) \
                  PyType_FastSubclass(Py_TYPE(op), Py_TPFLAGS_DICT_SUBCLASS)
 #define PyDict_CheckExact(op) (Py_TYPE(op) == &PyDict_Type)
-#define PyDictKeys_Check(op) (PyObject_IsInstance(op, (PyObject *)&PyDictKeys_Type))
-#define PyDictItems_Check(op) (PyObject_IsInstance(op, (PyObject *)&PyDictItems_Type))
-#define PyDictValues_Check(op) (PyObject_IsInstance(op, (PyObject *)&PyDictValues_Type))
+#define PyDictKeys_Check(op) PyObject_TypeCheck(op, &PyDictKeys_Type)
+#define PyDictItems_Check(op) PyObject_TypeCheck(op, &PyDictItems_Type)
+#define PyDictValues_Check(op) PyObject_TypeCheck(op, &PyDictValues_Type)
 /* This excludes Values, since they are not sets. */
 # define PyDictViewSet_Check(op) \
     (PyDictKeys_Check(op) || PyDictItems_Check(op))
diff --git a/Include/odictobject.h b/Include/odictobject.h
index a32fbc5..1d0d235 100644
--- a/Include/odictobject.h
+++ b/Include/odictobject.h
@@ -19,7 +19,7 @@
 
 #endif /* Py_LIMITED_API */
 
-#define PyODict_Check(op) PyObject_IsInstance(op, (PyObject *)&PyODict_Type)
+#define PyODict_Check(op) PyObject_TypeCheck(op, &PyODict_Type)
 #define PyODict_CheckExact(op) (Py_TYPE(op) == &PyODict_Type)
 #define PyODict_SIZE(op) ((PyDictObject *)op)->ma_used
 #define PyODict_HasKey(od, key) (PyMapping_HasKey(PyObject *)od, key)