diff --git a/dev_requirements.txt b/dev_requirements.txt
index 1798fab5..dac67503 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.post1
+pytz==2024.1
diff --git a/samples/snippets/requirements-test.txt b/samples/snippets/requirements-test.txt
index 552292b6..da1a67c7 100644
--- a/samples/snippets/requirements-test.txt
+++ b/samples/snippets/requirements-test.txt
@@ -1,10 +1,10 @@
-attrs==23.1.0
+attrs==23.2.0
 click==8.1.7
-google-auth==2.25.2
+google-auth==2.27.0
 google-cloud-testutils==1.4.0
 iniconfig==2.0.0
 packaging==23.2
-pluggy==1.3.0
+pluggy==1.4.0
 py==1.11.0
 pyasn1==0.5.1
 pyasn1-modules==0.3.0
diff --git a/samples/snippets/requirements.txt b/samples/snippets/requirements.txt
index a1ea3358..4e8f5b29 100644
--- a/samples/snippets/requirements.txt
+++ b/samples/snippets/requirements.txt
@@ -1,33 +1,33 @@
-alembic==1.13.0
-certifi==2023.11.17
+alembic==1.13.1
+certifi==2024.2.2
 charset-normalizer==3.3.2
-geoalchemy2==0.14.2
-google-api-core[grpc]==2.15.0
-google-auth==2.25.2
-google-cloud-bigquery==3.14.1
+geoalchemy2==0.14.3
+google-api-core[grpc]==2.16.2
+google-auth==2.27.0
+google-cloud-bigquery==3.17.1
 google-cloud-core==2.4.1
 google-crc32c==1.5.0
 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
+greenlet==3.0.3
+grpcio==1.60.1
+grpcio-status==1.60.1
 idna==3.6
 importlib-resources==6.1.1; python_version >= '3.8'
-mako==1.3.0
-markupsafe==2.1.3
+mako==1.3.2
+markupsafe==2.1.5
 packaging==23.2
 proto-plus==1.23.0
-protobuf==4.25.1
+protobuf==4.25.2
 pyasn1==0.5.1
 pyasn1-modules==0.3.0
 pyparsing==3.1.1
 python-dateutil==2.8.2
-pytz==2023.3.post1
+pytz==2024.1
 requests==2.31.0
 rsa==4.9
 shapely==2.0.2
 six==1.16.0
 sqlalchemy===1.4.27
 typing-extensions==4.9.0
-urllib3==2.1.0
+urllib3==2.2.0