diff --git a/dev_requirements.txt b/dev_requirements.txt
index ddc53054..1798fab5 100644
--- a/dev_requirements.txt
+++ b/dev_requirements.txt
@@ -2,4 +2,4 @@ sqlalchemy>=2.0.15,<2.1.0
 google-cloud-bigquery>=1.6.0
 pytest===6.2.5
 pytest-flake8===1.1.0  # versions 1.1.1 and above require pytest 7
-pytz==2023.3
+pytz==2023.3.post1
diff --git a/samples/snippets/requirements-test.txt b/samples/snippets/requirements-test.txt
index 90537d96..552292b6 100644
--- a/samples/snippets/requirements-test.txt
+++ b/samples/snippets/requirements-test.txt
@@ -1,16 +1,16 @@
 attrs==23.1.0
-click==8.1.6
-google-auth==2.22.0
-google-cloud-testutils==1.3.3
+click==8.1.7
+google-auth==2.25.2
+google-cloud-testutils==1.4.0
 iniconfig==2.0.0
-packaging==23.1
-pluggy==1.2.0
+packaging==23.2
+pluggy==1.3.0
 py==1.11.0
-pyasn1==0.5.0
+pyasn1==0.5.1
 pyasn1-modules==0.3.0
 pyparsing==3.1.1
 pytest===6.2.5
 rsa==4.9
 six==1.16.0
 toml==0.10.2
-typing-extensions==4.7.1
+typing-extensions==4.9.0
diff --git a/samples/snippets/requirements.txt b/samples/snippets/requirements.txt
index b15bf2cb..06eb49db 100644
--- a/samples/snippets/requirements.txt
+++ b/samples/snippets/requirements.txt
@@ -1,33 +1,33 @@
-alembic==1.11.2
-certifi==2023.7.22
-charset-normalizer==3.2.0
-geoalchemy2==0.14.1
-google-api-core[grpc]==2.11.1
-google-auth==2.22.0
-google-cloud-bigquery==3.11.4
-google-cloud-core==2.3.3
+alembic==1.13.0
+certifi==2023.11.17
+charset-normalizer==3.3.2
+geoalchemy2==0.14.2
+google-api-core[grpc]==2.15.0
+google-auth==2.25.2
+google-cloud-bigquery==3.14.0
+google-cloud-core==2.4.1
 google-crc32c==1.5.0
-google-resumable-media==2.5.0
-googleapis-common-protos==1.60.0
-greenlet==3.0.1
-grpcio==1.59.0
-grpcio-status==1.57.0
-idna==3.4
-importlib-resources==6.0.1; python_version >= '3.8'
-mako==1.2.4
+google-resumable-media==2.7.0
+googleapis-common-protos==1.62.0
+greenlet==3.0.2
+grpcio==1.60.0
+grpcio-status==1.60.0
+idna==3.6
+importlib-resources==6.1.1; python_version >= '3.8'
+mako==1.3.0
 markupsafe==2.1.3
-packaging==23.1
-proto-plus==1.22.3
-protobuf==4.24.0
-pyasn1==0.5.0
+packaging==23.2
+proto-plus==1.23.0
+protobuf==4.25.1
+pyasn1==0.5.1
 pyasn1-modules==0.3.0
 pyparsing==3.1.1
 python-dateutil==2.8.2
-pytz==2023.3
+pytz==2023.3.post1
 requests==2.31.0
 rsa==4.9
 shapely==2.0.2
 six==1.16.0
 sqlalchemy===1.4.27
-typing-extensions==4.7.1
-urllib3==1.26.18
+typing-extensions==4.9.0
+urllib3==2.1.0