diff --git a/packages/google-cloud-bigquery-reservation/.github/.OwlBot.lock.yaml b/packages/google-cloud-bigquery-reservation/.github/.OwlBot.lock.yaml
index 864c17653f80..46e3f021cc72 100644
--- a/packages/google-cloud-bigquery-reservation/.github/.OwlBot.lock.yaml
+++ b/packages/google-cloud-bigquery-reservation/.github/.OwlBot.lock.yaml
@@ -1,3 +1,3 @@
 docker:
   image: gcr.io/repo-automation-bots/owlbot-python:latest
-  digest: sha256:4c981a6b6f2b8914a448d7b3a01688365be03e3ed26dfee399a6aa77fb112eaa
+  digest: sha256:3c3a445b3ddc99ccd5d31edc4b4519729635d20693900db32c4f587ed51f7479
diff --git a/packages/google-cloud-bigquery-reservation/noxfile.py b/packages/google-cloud-bigquery-reservation/noxfile.py
index 4a3ebdf8a6a0..1aed928f0b52 100644
--- a/packages/google-cloud-bigquery-reservation/noxfile.py
+++ b/packages/google-cloud-bigquery-reservation/noxfile.py
@@ -179,7 +179,7 @@ def docs(session):
     """Build the docs for this library."""
 
     session.install("-e", ".")
-    session.install("sphinx", "alabaster", "recommonmark")
+    session.install("sphinx==4.0.1", "alabaster", "recommonmark")
 
     shutil.rmtree(os.path.join("docs", "_build"), ignore_errors=True)
     session.run(
@@ -201,7 +201,9 @@ def docfx(session):
     """Build the docfx yaml files for this library."""
 
     session.install("-e", ".")
-    session.install("sphinx", "alabaster", "recommonmark", "gcp-sphinx-docfx-yaml")
+    session.install(
+        "sphinx==4.0.1", "alabaster", "recommonmark", "gcp-sphinx-docfx-yaml"
+    )
 
     shutil.rmtree(os.path.join("docs", "_build"), ignore_errors=True)
     session.run(
diff --git a/packages/google-cloud-bigquery-reservation/samples/snippets/noxfile.py b/packages/google-cloud-bigquery-reservation/samples/snippets/noxfile.py
index 85c16cd6da11..b3c8658a3a72 100644
--- a/packages/google-cloud-bigquery-reservation/samples/snippets/noxfile.py
+++ b/packages/google-cloud-bigquery-reservation/samples/snippets/noxfile.py
@@ -48,6 +48,10 @@
     # to use your own Cloud project.
     "gcloud_project_env": "GOOGLE_CLOUD_PROJECT",
     # 'gcloud_project_env': 'BUILD_SPECIFIC_GCLOUD_PROJECT',
+    # If you need to use a specific version of pip,
+    # change pip_version_override to the string representation
+    # of the version number, for example, "20.2.4"
+    "pip_version_override": None,
     # A dictionary you want to inject into your test. Don't put any
     # secrets here. These values will override predefined values.
     "envs": {},
@@ -172,6 +176,9 @@ def blacken(session: nox.sessions.Session) -> None:
 def _session_tests(
     session: nox.sessions.Session, post_install: Callable = None
 ) -> None:
+    if TEST_CONFIG["pip_version_override"]:
+        pip_version = TEST_CONFIG["pip_version_override"]
+        session.install(f"pip=={pip_version}")
     """Runs py.test for a particular project."""
     if os.path.exists("requirements.txt"):
         if os.path.exists("constraints.txt"):
@@ -198,7 +205,7 @@ def _session_tests(
         # on travis where slow and flaky tests are excluded.
         # See http://doc.pytest.org/en/latest/_modules/_pytest/main.html
         success_codes=[0, 5],
-        env=get_pytest_env_vars()
+        env=get_pytest_env_vars(),
     )