diff --git a/dev_requirements.txt b/dev_requirements.txt
index 17e4e6d0..d64f143c 100644
--- a/dev_requirements.txt
+++ b/dev_requirements.txt
@@ -1,6 +1,6 @@
-sqlalchemy>=1.1.9,<2.0.0
+sqlalchemy>=2.0.15,<2.1.0
 google-cloud-bigquery>=1.6.0
 future==0.18.2
 pytest===6.2.5
 pytest-flake8===1.1.0  # versions 1.1.1 and above require pytest 7
-pytz==2022.2.1
+pytz==2023.3
diff --git a/samples/snippets/requirements-test.txt b/samples/snippets/requirements-test.txt
index bd43d0d7..9857cde8 100644
--- a/samples/snippets/requirements-test.txt
+++ b/samples/snippets/requirements-test.txt
@@ -1,16 +1,16 @@
-attrs==22.1.0
+attrs==23.1.0
 click==8.1.3
-google-auth==2.11.0
+google-auth==2.19.1
 google-cloud-testutils==1.3.3
-iniconfig==1.1.1
-packaging==21.3
+iniconfig==2.0.0
+packaging==23.1
 pluggy==1.0.0
 py==1.11.0
-pyasn1==0.4.8
-pyasn1-modules==0.2.8
+pyasn1==0.5.0
+pyasn1-modules==0.3.0
 pyparsing==3.0.9
 pytest===6.2.5
 rsa==4.9
 six==1.16.0
 toml==0.10.2
-typing-extensions==4.3.0
+typing-extensions==4.6.3
diff --git a/samples/snippets/requirements.txt b/samples/snippets/requirements.txt
index 48f2fc19..39b62c52 100644
--- a/samples/snippets/requirements.txt
+++ b/samples/snippets/requirements.txt
@@ -1,34 +1,34 @@
-alembic==1.8.1
-certifi==2022.12.7
-charset-normalizer==2.1.1
+alembic==1.11.1
+certifi==2023.5.7
+charset-normalizer==3.1.0
 future==0.18.2
-geoalchemy2==0.12.5
-google-api-core[grpc]==2.10.0
-google-auth==2.11.0
-google-cloud-bigquery==3.3.2
+geoalchemy2==0.13.3
+google-api-core[grpc]==2.11.0
+google-auth==2.19.1
+google-cloud-bigquery==3.11.0
 google-cloud-core==2.3.2
 google-crc32c==1.5.0
-google-resumable-media==2.3.3
-googleapis-common-protos==1.56.4
-greenlet==1.1.3
-grpcio==1.48.1
-grpcio-status==1.48.1
-idna==3.3
-importlib-resources==5.9.0
-mako==1.2.2
-markupsafe==2.1.1
-packaging==21.3
-proto-plus==1.22.1
-protobuf==4.21.6
-pyasn1==0.4.8
-pyasn1-modules==0.2.8
+google-resumable-media==2.5.0
+googleapis-common-protos==1.59.0
+greenlet==2.0.2
+grpcio==1.54.2
+grpcio-status==1.54.2
+idna==3.4
+importlib-resources==5.12.0
+mako==1.2.4
+markupsafe==2.1.3
+packaging==23.1
+proto-plus==1.22.2
+protobuf==4.23.2
+pyasn1==0.5.0
+pyasn1-modules==0.3.0
 pyparsing==3.0.9
 python-dateutil==2.8.2
-pytz==2022.2.1
+pytz==2023.3
 requests==2.31.0
 rsa==4.9
-shapely==1.8.4
+shapely==2.0.1
 six==1.16.0
 sqlalchemy===1.4.27
-typing-extensions==4.3.0
-urllib3==1.26.12
+typing-extensions==4.6.3
+urllib3==2.0.2