diff --git a/sphinx/ext/napoleon/__init__.py b/sphinx/ext/napoleon/__init__.py
index 0c2a0b60a..f62ba40c0 100644
--- a/sphinx/ext/napoleon/__init__.py
+++ b/sphinx/ext/napoleon/__init__.py
@@ -44,7 +44,7 @@ class Config:
         napoleon_preprocess_types = False
         napoleon_type_aliases = None
         napoleon_custom_sections = None
-        napoleon_attr_annotations = False
+        napoleon_attr_annotations = True
 
     .. _Google style:
        https://google.github.io/styleguide/pyguide.html