Regenerate docs
diff --git a/docs/reference/google.oauth2.rst b/docs/reference/google.oauth2.rst
index fb67d27..9126549 100644
--- a/docs/reference/google.oauth2.rst
+++ b/docs/reference/google.oauth2.rst
@@ -3,6 +3,14 @@
 
 .. automodule:: google.oauth2
     :members:
-    :undoc-members:
+    :inherited-members:
     :show-inheritance:
 
+Submodules
+----------
+
+.. toctree::
+
+   google.oauth2.credentials
+   google.oauth2.service_account
+