diff --git a/.github/workflows/docs.yml b/.github/workflows/docs.yml
index 2833fe98ff..4c061f2a88 100644
--- a/.github/workflows/docs.yml
+++ b/.github/workflows/docs.yml
@@ -8,11 +8,11 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - name: Checkout
-      uses: actions/checkout@v4
+      uses: actions/checkout@v5
     - name: Setup Python
       uses: actions/setup-python@v5
       with:
-        python-version: "3.10"
+        python-version: "3.13"
     - name: Install nox
       run: |
         python -m pip install --upgrade setuptools pip wheel
@@ -24,11 +24,11 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - name: Checkout
-      uses: actions/checkout@v4
+      uses: actions/checkout@v5
     - name: Setup Python
       uses: actions/setup-python@v5
       with:
-        python-version: "3.10"
+        python-version: "3.13"
     - name: Install nox
       run: |
         python -m pip install --upgrade setuptools pip wheel
diff --git a/.github/workflows/lint.yml b/.github/workflows/lint.yml
index 1051da0bdd..421cd2a569 100644
--- a/.github/workflows/lint.yml
+++ b/.github/workflows/lint.yml
@@ -8,11 +8,11 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - name: Checkout
-      uses: actions/checkout@v4
+      uses: actions/checkout@v5
     - name: Setup Python
       uses: actions/setup-python@v5
       with:
-        python-version: "3.10"
+        python-version: "3.13"
     - name: Install nox
       run: |
         python -m pip install --upgrade setuptools pip wheel
diff --git a/.github/workflows/mypy.yml b/.github/workflows/mypy.yml
index e6a79291d0..3d0a07fe87 100644
--- a/.github/workflows/mypy.yml
+++ b/.github/workflows/mypy.yml
@@ -8,11 +8,11 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - name: Checkout
-      uses: actions/checkout@v4
+      uses: actions/checkout@v5
     - name: Setup Python
       uses: actions/setup-python@v5
       with:
-        python-version: "3.10"
+        python-version: "3.13"
     - name: Install nox
       run: |
         python -m pip install --upgrade setuptools pip wheel
diff --git a/samples/polars/requirements-test.txt b/samples/polars/requirements-test.txt
index cbac5e3f12..4017c2d2c6 100644
--- a/samples/polars/requirements-test.txt
+++ b/samples/polars/requirements-test.txt
@@ -1,3 +1,3 @@
 # samples/snippets should be runnable with no "extras"
-google-cloud-testutils==1.4.0
-pytest==8.3.2
+google-cloud-testutils==1.6.4
+pytest==8.4.1
diff --git a/samples/polars/requirements.txt b/samples/polars/requirements.txt
index a1d8fbcdac..214f2c5fcc 100644
--- a/samples/polars/requirements.txt
+++ b/samples/polars/requirements.txt
@@ -1,3 +1,3 @@
-bigframes==1.11.1
-polars==1.3.0
-pyarrow==15.0.0
+bigframes==2.17.0
+polars==1.33.0
+pyarrow==21.0.0
diff --git a/samples/snippets/requirements-test.txt b/samples/snippets/requirements-test.txt
index cbac5e3f12..4017c2d2c6 100644
--- a/samples/snippets/requirements-test.txt
+++ b/samples/snippets/requirements-test.txt
@@ -1,3 +1,3 @@
 # samples/snippets should be runnable with no "extras"
-google-cloud-testutils==1.4.0
-pytest==8.3.2
+google-cloud-testutils==1.6.4
+pytest==8.4.1
diff --git a/samples/snippets/requirements.txt b/samples/snippets/requirements.txt
index 9b5da5182e..c4a27918d6 100644
--- a/samples/snippets/requirements.txt
+++ b/samples/snippets/requirements.txt
@@ -1,2 +1,2 @@
 # samples/snippets should be runnable with no "extras"
-bigframes==1.11.1
+bigframes==2.17.0