diff --git a/gapic/ads-templates/scripts/fixup_%name_%version_keywords.py.j2 b/gapic/ads-templates/scripts/fixup_%name_%version_keywords.py.j2
index 99681ed992..9c4afb35c8 100644
--- a/gapic/ads-templates/scripts/fixup_%name_%version_keywords.py.j2
+++ b/gapic/ads-templates/scripts/fixup_%name_%version_keywords.py.j2
@@ -1,3 +1,4 @@
+#! /usr/bin/env python3
 {% extends '_base.py.j2' %}
 {% block content %}
 import argparse
diff --git a/gapic/templates/docs/%name_%version/types.rst.j2 b/gapic/templates/docs/%name_%version/types.rst.j2
index 640641f211..a77df003f7 100644
--- a/gapic/templates/docs/%name_%version/types.rst.j2
+++ b/gapic/templates/docs/%name_%version/types.rst.j2
@@ -3,3 +3,4 @@ Types for {{ api.naming.long_name }} {{ api.naming.version }} API
 
 .. automodule:: {{ api.naming.namespace|join('.')|lower }}.{{ api.naming.versioned_module_name }}.types
     :members:
+    :show-inheritance:
diff --git a/gapic/templates/docs/conf.py.j2 b/gapic/templates/docs/conf.py.j2
index 1e827b37d9..423c3ad088 100644
--- a/gapic/templates/docs/conf.py.j2
+++ b/gapic/templates/docs/conf.py.j2
@@ -346,6 +346,7 @@ intersphinx_mapping = {
     "google.api_core": ("https://googleapis.dev/python/google-api-core/latest/", None),
     "grpc": ("https://grpc.io/grpc/python/", None),
     "requests": ("http://requests.kennethreitz.org/en/stable/", None),
+    "proto": ("https://proto-plus-python.readthedocs.io/en/stable", None),
 }
 
 
diff --git a/gapic/templates/scripts/fixup_%name_%version_keywords.py.j2 b/gapic/templates/scripts/fixup_%name_%version_keywords.py.j2
index 6688025184..d040ba8126 100644
--- a/gapic/templates/scripts/fixup_%name_%version_keywords.py.j2
+++ b/gapic/templates/scripts/fixup_%name_%version_keywords.py.j2
@@ -1,3 +1,4 @@
+#! /usr/bin/env python3
 {% extends '_base.py.j2' %}
 {% block content %}
 import argparse
diff --git a/noxfile.py b/noxfile.py
index ba283480e1..9c2462b815 100644
--- a/noxfile.py
+++ b/noxfile.py
@@ -229,7 +229,7 @@ def showcase_mypy_alternative_templates(session):
     showcase_mypy(session, templates=ADS_TEMPLATES, other_opts=("old-naming",))
 
 
-@nox.session(python="3.6")
+@nox.session(python="3.8")
 def docs(session):
     """Build the docs."""