diff --git a/sphinx/util/typing.py b/sphinx/util/typing.py
index fd5735c579d..78feb64929e 100644
--- a/sphinx/util/typing.py
+++ b/sphinx/util/typing.py
@@ -124,7 +124,13 @@ def restify(cls: Optional[Type]) -> str:
             else:
                 return ' | '.join(restify(a) for a in cls.__args__)
         elif cls.__module__ in ('__builtin__', 'builtins'):
-            return ':class:`%s`' % cls.__name__
+            if hasattr(cls, '__args__'):
+                return ':class:`%s`\\ [%s]' % (
+                    cls.__name__,
+                    ', '.join(restify(arg) for arg in cls.__args__),
+                )
+            else:
+                return ':class:`%s`' % cls.__name__
         else:
             if sys.version_info >= (3, 7):  # py37+
                 return _restify_py37(cls)
diff --git a/tests/test_util_typing.py b/tests/test_util_typing.py
index 04125a73a83..9cb1d61ef5f 100644
--- a/tests/test_util_typing.py
+++ b/tests/test_util_typing.py
@@ -140,6 +140,14 @@ def test_restify_type_Literal():
     assert restify(Literal[1, "2", "\r"]) == ":obj:`~typing.Literal`\\ [1, '2', '\\r']"
 
 
+@pytest.mark.skipif(sys.version_info < (3, 9), reason='python 3.9+ is required.')
+def test_restify_pep_585():
+    assert restify(list[str]) == ":class:`list`\\ [:class:`str`]"  # type: ignore
+    assert restify(dict[str, str]) == ":class:`dict`\\ [:class:`str`, :class:`str`]"  # type: ignore
+    assert restify(dict[str, tuple[int, ...]]) == \
+        ":class:`dict`\\ [:class:`str`, :class:`tuple`\\ [:class:`int`, ...]]"  # type: ignore
+
+
 @pytest.mark.skipif(sys.version_info < (3, 10), reason='python 3.10+ is required.')
 def test_restify_type_union_operator():
     assert restify(int | None) == ":class:`int` | :obj:`None`"  # type: ignore