diff --git a/samples/desktopapp/requirements-test.txt b/samples/desktopapp/requirements-test.txt
index 31b836790..6f4af7028 100644
--- a/samples/desktopapp/requirements-test.txt
+++ b/samples/desktopapp/requirements-test.txt
@@ -1,4 +1,4 @@
-google-cloud-testutils==1.6.4
-pytest==8.4.2
+google-cloud-testutils==1.7.0
+pytest==9.0.2
 mock==5.2.0
 pytest-xdist==3.8.0
diff --git a/samples/desktopapp/requirements.txt b/samples/desktopapp/requirements.txt
index 56696f868..5214da8d7 100644
--- a/samples/desktopapp/requirements.txt
+++ b/samples/desktopapp/requirements.txt
@@ -1,2 +1,2 @@
-google-cloud-bigquery==3.38.0
-google-auth-oauthlib==1.2.2
+google-cloud-bigquery==3.40.0
+google-auth-oauthlib==1.2.3
diff --git a/samples/geography/requirements-test.txt b/samples/geography/requirements-test.txt
index 6fb9ba310..2ece619f8 100644
--- a/samples/geography/requirements-test.txt
+++ b/samples/geography/requirements-test.txt
@@ -1,3 +1,3 @@
-pytest==8.4.2
+pytest==9.0.2
 mock==5.2.0
 pytest-xdist==3.8.0
diff --git a/samples/geography/requirements.txt b/samples/geography/requirements.txt
index ec5c7f2af..2d00ab157 100644
--- a/samples/geography/requirements.txt
+++ b/samples/geography/requirements.txt
@@ -1,36 +1,36 @@
 attrs==25.4.0
-certifi==2025.10.5
+certifi==2026.1.4
 cffi==2.0.0
-charset-normalizer==3.4.3
+charset-normalizer==3.4.4
 click===8.1.8; python_version == '3.9'
-click==8.3.0; python_version >= '3.10'
+click==8.3.1; python_version >= '3.10'
 click-plugins==1.1.1.2
 cligj==0.7.2
-db-dtypes==1.4.3
+db-dtypes==1.5.0
 Fiona==1.10.1
 geojson==3.2.0
 geopandas===1.0.1; python_version <= '3.9'
-geopandas==1.1.1; python_version >= '3.10'
-google-api-core==2.25.2
-google-auth==2.41.1
-google-cloud-bigquery==3.38.0
-google-cloud-bigquery-storage==2.33.1
-google-cloud-core==2.4.3
-google-crc32c==1.7.1
-google-resumable-media==2.7.2
-googleapis-common-protos==1.70.0
-grpcio==1.75.1
-idna==3.10
+geopandas==1.1.2; python_version >= '3.10'
+google-api-core==2.28.1
+google-auth==2.47.0
+google-cloud-bigquery==3.40.0
+google-cloud-bigquery-storage==2.36.0
+google-cloud-core==2.5.0
+google-crc32c==1.8.0
+google-resumable-media==2.8.0
+googleapis-common-protos==1.72.0
+grpcio==1.76.0
+idna==3.11
 munch==4.0.0
 mypy-extensions==1.1.0
 packaging==25.0
 pandas==2.3.3
-proto-plus==1.26.1
-pyarrow==21.0.0
+proto-plus==1.27.0
+pyarrow==22.0.0
 pyasn1==0.6.1
 pyasn1-modules==0.4.2
 pycparser==2.23
-pyparsing==3.2.5
+pyparsing==3.3.1
 python-dateutil==2.9.0.post0
 pytz==2025.2
 PyYAML==6.0.3
diff --git a/samples/magics/requirements-test.txt b/samples/magics/requirements-test.txt
index 31b836790..6f4af7028 100644
--- a/samples/magics/requirements-test.txt
+++ b/samples/magics/requirements-test.txt
@@ -1,4 +1,4 @@
-google-cloud-testutils==1.6.4
-pytest==8.4.2
+google-cloud-testutils==1.7.0
+pytest==9.0.2
 mock==5.2.0
 pytest-xdist==3.8.0
diff --git a/samples/magics/requirements.txt b/samples/magics/requirements.txt
index 331e910e2..195c37e81 100644
--- a/samples/magics/requirements.txt
+++ b/samples/magics/requirements.txt
@@ -1,6 +1,6 @@
-bigquery_magics==0.10.3
-db-dtypes==1.4.3
-google.cloud.bigquery==3.38.0
-google-cloud-bigquery-storage==2.33.1
+bigquery_magics==0.11.0
+db-dtypes==1.5.0
+google.cloud.bigquery==3.40.0
+google-cloud-bigquery-storage==2.36.0
 ipython===8.18.1
 pandas==2.3.3
diff --git a/samples/notebooks/requirements-test.txt b/samples/notebooks/requirements-test.txt
index 31b836790..6f4af7028 100644
--- a/samples/notebooks/requirements-test.txt
+++ b/samples/notebooks/requirements-test.txt
@@ -1,4 +1,4 @@
-google-cloud-testutils==1.6.4
-pytest==8.4.2
+google-cloud-testutils==1.7.0
+pytest==9.0.2
 mock==5.2.0
 pytest-xdist==3.8.0
diff --git a/samples/notebooks/requirements.txt b/samples/notebooks/requirements.txt
index ef509734a..0990d2ec0 100644
--- a/samples/notebooks/requirements.txt
+++ b/samples/notebooks/requirements.txt
@@ -1,9 +1,9 @@
-bigquery-magics==0.10.3
-db-dtypes==1.4.3
-google-cloud-bigquery==3.38.0
-google-cloud-bigquery-storage==2.33.1
+bigquery-magics==0.11.0
+db-dtypes==1.5.0
+google-cloud-bigquery==3.40.0
+google-cloud-bigquery-storage==2.36.0
 ipython===8.18.1; python_version == '3.9'
-ipython==9.6.0; python_version >= '3.10'
+ipython==9.9.0; python_version >= '3.10'
 matplotlib===3.9.2; python_version == '3.9'
-matplotlib==3.10.6; python_version >= '3.10'
+matplotlib==3.10.8; python_version >= '3.10'
 pandas==2.3.3
diff --git a/samples/snippets/requirements-test.txt b/samples/snippets/requirements-test.txt
index 901f1df1a..564a4978b 100644
--- a/samples/snippets/requirements-test.txt
+++ b/samples/snippets/requirements-test.txt
@@ -1,5 +1,5 @@
 # samples/snippets should be runnable with no "extras"
-google-cloud-testutils==1.6.4
-pytest==8.4.2
+google-cloud-testutils==1.7.0
+pytest==9.0.2
 mock==5.2.0
 pytest-xdist==3.8.0
diff --git a/samples/snippets/requirements.txt b/samples/snippets/requirements.txt
index 441385536..4680bd971 100644
--- a/samples/snippets/requirements.txt
+++ b/samples/snippets/requirements.txt
@@ -1,2 +1,2 @@
 # samples/snippets should be runnable with no "extras"
-google-cloud-bigquery==3.38.0
+google-cloud-bigquery==3.40.0