diff --git a/Lib/dataclasses.py b/Lib/dataclasses.py
index 530d3e9..6509102 100644
--- a/Lib/dataclasses.py
+++ b/Lib/dataclasses.py
@@ -6,6 +6,7 @@
 import keyword
 import builtins
 import functools
+import abc
 import _thread
 from types import GenericAlias
 
@@ -992,6 +993,8 @@
         cls.__doc__ = (cls.__name__ +
                        str(inspect.signature(cls)).replace(' -> None', ''))
 
+    abc.update_abstractmethods(cls)
+
     return cls