diff --git a/noxfile.py b/noxfile.py
index 8404d6d2..823c72c2 100644
--- a/noxfile.py
+++ b/noxfile.py
@@ -99,11 +99,11 @@ def default(session):
     )
 
     if session.python == "3.8":
-        extras = "[alembic]"
+        extras = "[tests,alembic]"
     elif session.python == "3.9":
-        extras = "[geography]"
+        extras = "[tests,geography]"
     else:
-        extras = ""
+        extras = "[tests]"
     session.install("-e", f".{extras}", "-c", constraints_path)
 
     # Run py.test against the unit tests.
@@ -157,11 +157,11 @@ def system(session):
     # virtualenv's dist-packages.
     session.install("mock", "pytest", "google-cloud-testutils", "-c", constraints_path)
     if session.python == "3.8":
-        extras = "[alembic]"
+        extras = "[tests,alembic]"
     elif session.python == "3.9":
-        extras = "[geography]"
+        extras = "[tests,geography]"
     else:
-        extras = ""
+        extras = "[tests]"
     session.install("-e", f".{extras}", "-c", constraints_path)
 
     # Run py.test against the system tests.
@@ -211,11 +211,11 @@ def compliance(session):
         constraints_path,
     )
     if session.python == "3.8":
-        extras = "[alembic]"
+        extras = "[tests,alembic]"
     elif session.python == "3.9":
-        extras = "[geography]"
+        extras = "[tests,geography]"
     else:
-        extras = ""
+        extras = "[tests]"
     session.install("-e", f".{extras}", "-c", constraints_path)
 
     session.run(
diff --git a/owlbot.py b/owlbot.py
index 03cc243e..b6cfe7ff 100644
--- a/owlbot.py
+++ b/owlbot.py
@@ -27,10 +27,10 @@
 # ----------------------------------------------------------------------------
 # Add templated files
 # ----------------------------------------------------------------------------
-extras = []
+extras = ["tests"]
 extras_by_python = {
-    "3.8": ["alembic"],
-    "3.9": ["geography"],
+    "3.8": ["tests", "alembic"],
+    "3.9": ["tests", "geography"],
 }
 templated_files = common.py_library(
     unit_test_python_versions=["3.6", "3.7", "3.8", "3.9"],
@@ -135,11 +135,11 @@ def compliance(session):
         constraints_path,
     )
     if session.python == "3.8":
-        extras = "[alembic]"
+        extras = "[tests,alembic]"
     elif session.python == "3.9":
-        extras = "[geography]"
+        extras = "[tests,geography]"
     else:
-        extras = ""
+        extras = "[tests]"
     session.install("-e", f".{extras}", "-c", constraints_path)
 
     session.run(
diff --git a/samples/snippets/requirements.txt b/samples/snippets/requirements.txt
index 95be528e..48cfb78d 100644
--- a/samples/snippets/requirements.txt
+++ b/samples/snippets/requirements.txt
@@ -14,11 +14,11 @@ Fiona==1.8.20
 future==0.18.2
 GeoAlchemy2==0.9.3
 geopandas==0.9.0
-google-api-core==1.31.2
-google-auth==1.35.0
-google-cloud-bigquery==2.24.0
+google-api-core==2.0.0
+google-auth==2.0.0
+google-cloud-bigquery==2.24.1
 google-cloud-bigquery-storage==2.6.3
-google-cloud-core==1.7.2
+google-cloud-core==2.0.0
 google-crc32c==1.1.2
 google-resumable-media==1.3.3
 googleapis-common-protos==1.53.0
diff --git a/setup.py b/setup.py
index 378e3a23..fd8a8acd 100644
--- a/setup.py
+++ b/setup.py
@@ -45,7 +45,7 @@ def readme():
         return f.read()
 
 
-extras = dict(geography=["GeoAlchemy2", "shapely"], alembic=["alembic"],)
+extras = dict(geography=["GeoAlchemy2", "shapely"], alembic=["alembic"], tests=["pytz"])
 extras["all"] = set(itertools.chain.from_iterable(extras.values()))
 
 setup(
@@ -79,7 +79,7 @@ def readme():
         # Until this issue is closed
         # https://github.com/googleapis/google-cloud-python/issues/10566
         "google-auth>=1.25.0,<3.0.0dev",  # Work around pip wack.
-        "google-cloud-bigquery>=2.19.0",
+        "google-cloud-bigquery>=2.24.1",
         "sqlalchemy>=1.2.0,<1.5.0dev",
         "future",
     ],