diff --git a/python2/test_typing.py b/python2/test_typing.py
index e709ffb08..6e1feb996 100644
--- a/python2/test_typing.py
+++ b/python2/test_typing.py
@@ -527,7 +527,7 @@ def test_reversible(self):
 
     def test_protocol_instance_type_error(self):
         with self.assertRaises(TypeError):
-            isinstance([], typing.Reversible)
+            isinstance(0, typing.SupportsAbs)
 
 
 class GenericTests(TestCase):
diff --git a/python2/typing.py b/python2/typing.py
index d219aebd6..04521205c 100644
--- a/python2/typing.py
+++ b/python2/typing.py
@@ -1363,12 +1363,17 @@ def __abs__(self):
         pass
 
 
-class Reversible(_Protocol[T_co]):
-    __slots__ = ()
+if hasattr(collections_abc, 'Reversible'):
+    class Reversible(Iterable[T_co]):
+        __slots__ = ()
+        __extra__ = collections_abc.Reversible
+else:    
+    class Reversible(_Protocol[T_co]):
+        __slots__ = ()
 
-    @abstractmethod
-    def __reversed__(self):
-        pass
+        @abstractmethod
+        def __reversed__(self):
+            pass
 
 
 Sized = collections_abc.Sized  # Not generic.
@@ -1399,8 +1404,12 @@ class MutableMapping(Mapping[KT, VT]):
     __extra__ = collections_abc.MutableMapping
 
 
-class Sequence(Sized, Iterable[T_co], Container[T_co]):
-    __extra__ = collections_abc.Sequence
+if hasattr(collections_abc, 'Reversible'):
+    class Sequence(Sized, Reversible[T_co], Container[T_co]):
+        __extra__ = collections_abc.Sequence
+else:
+    class Sequence(Sized, Iterable[T_co], Container[T_co]):
+        __extra__ = collections_abc.Sequence
 
 
 class MutableSequence(Sequence[T]):
diff --git a/src/test_typing.py b/src/test_typing.py
index 0f40b93a2..fdee131c2 100644
--- a/src/test_typing.py
+++ b/src/test_typing.py
@@ -550,7 +550,7 @@ def test_reversible(self):
 
     def test_protocol_instance_type_error(self):
         with self.assertRaises(TypeError):
-            isinstance([], typing.Reversible)
+            isinstance(0, typing.SupportsAbs)
 
 
 class GenericTests(TestCase):
diff --git a/src/typing.py b/src/typing.py
index a1469ff03..93934f23d 100644
--- a/src/typing.py
+++ b/src/typing.py
@@ -1378,12 +1378,16 @@ def __round__(self, ndigits: int = 0) -> T_co:
         pass
 
 
-class Reversible(_Protocol[T_co]):
-    __slots__ = ()
+if hasattr(collections_abc, 'Reversible'):
+    class Reversible(Iterable[T_co], extra=collections_abc.Reversible):
+        __slots__ = ()
+else:    
+    class Reversible(_Protocol[T_co]):
+        __slots__ = ()
 
-    @abstractmethod
-    def __reversed__(self) -> 'Iterator[T_co]':
-        pass
+        @abstractmethod
+        def __reversed__(self) -> 'Iterator[T_co]':
+            pass
 
 
 Sized = collections_abc.Sized  # Not generic.
@@ -1414,10 +1418,14 @@ class Mapping(Sized, Iterable[KT], Container[KT], Generic[VT_co],
 class MutableMapping(Mapping[KT, VT], extra=collections_abc.MutableMapping):
     pass
 
-
-class Sequence(Sized, Iterable[T_co], Container[T_co],
+if hasattr(collections_abc, 'Reversible'):
+    class Sequence(Sized, Reversible[T_co], Container[T_co],
                extra=collections_abc.Sequence):
-    pass
+        pass
+else:
+    class Sequence(Sized, Iterable[T_co], Container[T_co],
+                   extra=collections_abc.Sequence):
+        pass
 
 
 class MutableSequence(Sequence[T], extra=collections_abc.MutableSequence):