diff --git a/dev_requirements.txt b/dev_requirements.txt
index 933bd8fd..5116ccab 100644
--- a/dev_requirements.txt
+++ b/dev_requirements.txt
@@ -1,7 +1,6 @@
 sqlalchemy>=1.1.9
 google-cloud-bigquery>=1.6.0
 future==0.18.2
-
 pytest==6.2.5
-pytest-flake8==1.1.0
-pytz==2021.3
\ No newline at end of file
+pytest-flake8==1.1.1
+pytz==2022.1
diff --git a/samples/snippets/requirements-test.txt b/samples/snippets/requirements-test.txt
index 4055c210..9b5fcbb8 100644
--- a/samples/snippets/requirements-test.txt
+++ b/samples/snippets/requirements-test.txt
@@ -1,6 +1,6 @@
 attrs==21.4.0
-click==8.0.4
-google-auth==2.6.0
+click==8.1.0
+google-auth==2.6.2
 google-cloud-testutils==1.3.1
 iniconfig==1.1.1
 packaging==21.3
diff --git a/samples/snippets/requirements.txt b/samples/snippets/requirements.txt
index 4266837c..aa528dfb 100644
--- a/samples/snippets/requirements.txt
+++ b/samples/snippets/requirements.txt
@@ -1,22 +1,22 @@
-alembic==1.7.6
+alembic==1.7.7
 certifi==2021.10.8
 charset-normalizer==2.0.12
 future==0.18.2
 geoalchemy2==0.11.1
-google-api-core[grpc]==2.7.0
-google-auth==2.6.0
+google-api-core[grpc]==2.7.1
+google-auth==2.6.2
 google-cloud-bigquery==2.34.2
 google-cloud-core==2.2.3
 google-crc32c==1.3.0
 google-resumable-media==2.3.2
-googleapis-common-protos==1.55.0
+googleapis-common-protos==1.56.0
 greenlet==1.1.2
-grpcio==1.44.0
-grpcio-status==1.44.0
+grpcio==1.45.0
+grpcio-status==1.45.0
 idna==3.3
-importlib-resources==5.4.0
-mako==1.1.6
-markupsafe==2.1.0
+importlib-resources==5.6.0
+mako==1.2.0
+markupsafe==2.1.1
 packaging==21.3
 proto-plus==1.20.3
 protobuf==3.19.4
@@ -24,11 +24,11 @@ pyasn1==0.4.8
 pyasn1-modules==0.2.8
 pyparsing==3.0.7
 python-dateutil==2.8.2
-pytz==2021.3
+pytz==2022.1
 requests==2.27.1
 rsa==4.8
 shapely==1.8.1.post1
 six==1.16.0
 sqlalchemy==1.4.27
 typing-extensions==4.1.1
-urllib3==1.26.8
+urllib3==1.26.9