diff --git a/Doc/c-api/unicode.rst b/Doc/c-api/unicode.rst
index b1787ed..0515183 100644
--- a/Doc/c-api/unicode.rst
+++ b/Doc/c-api/unicode.rst
@@ -705,6 +705,8 @@
    :c:func:`PyUnicode_AsWideChar`, :c:func:`PyUnicode_ReadChar` or similar new
    APIs.
 
+   .. deprecated-removed:: 3.3 3.10
+
 
 .. c:function:: PyObject* PyUnicode_TransformDecimalToASCII(Py_UNICODE *s, Py_ssize_t size)