diff --git a/.github/workflows/docs-trigger.yaml b/.github/workflows/docs-trigger.yaml
index db3523f1..6c016ba3 100644
--- a/.github/workflows/docs-trigger.yaml
+++ b/.github/workflows/docs-trigger.yaml
@@ -11,7 +11,7 @@ jobs:
   trigger-docs:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/github-script@v7
+      - uses: actions/github-script@f28e40c7f34bde8b3046d885e986cb6290c5673b # v7.1.0
         with:
           script: |
             await github.rest.actions.createWorkflowDispatch({
diff --git a/.github/workflows/docs.yaml b/.github/workflows/docs.yaml
index 4f534bbe..11faa4ce 100644
--- a/.github/workflows/docs.yaml
+++ b/.github/workflows/docs.yaml
@@ -21,12 +21,12 @@ jobs:
       PYTHON_VERSION: '3.12'
     steps:
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5 # v4.3.1
         with:
           fetch-depth: 0  # Fetch all history for sphinx-multiversion
       - name: Setup Pages
-        uses: actions/configure-pages@v5
-      - uses: astral-sh/setup-uv@v5
+        uses: actions/configure-pages@983d7736d9b0ae728b81ab479565c72886d7745b # v5.0.0
+      - uses: astral-sh/setup-uv@d4b2f3b6ecc6e67c4457f6d3e41ec42d3d0fcb86 # v5.4.2
         with:
           python-version: ${{ matrix.python-version }}
           enable-cache: true
@@ -34,7 +34,7 @@ jobs:
           uv sync --group dev
           make docs
       - name: Upload artifact
-        uses: actions/upload-pages-artifact@v3
+        uses: actions/upload-pages-artifact@56afc609e74202658d3ffba0e8f6dda462b719fa # v3.0.1
         with:
           path: './docs/_build/html'
 
@@ -47,4 +47,4 @@ jobs:
     steps:
       - name: Deploy to GitHub Pages
         id: deployment
-        uses: actions/deploy-pages@v4
+        uses: actions/deploy-pages@d6db90164ac5ed86f2b6aed7e0febac5b3c0c03e # v4.0.5
diff --git a/.github/workflows/pinact.yaml b/.github/workflows/pinact.yaml
new file mode 100644
index 00000000..8072ee89
--- /dev/null
+++ b/.github/workflows/pinact.yaml
@@ -0,0 +1,22 @@
+name: Pinact
+
+on:
+  pull_request:
+    paths:
+      - '.github/workflows/**'
+      - '.github/actions/**'
+
+permissions:
+  contents: read
+
+jobs:
+  pinact:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5 # v4.3.1
+        with:
+          persist-credentials: false
+      - uses: suzuki-shunsuke/pinact-action@cf51507d80d4d6522a07348e3d58790290eaf0b6 # v2.0.0
+        with:
+          app_id: ${{ vars.BOT_APP_ID }}
+          app_private_key: ${{ secrets.BOT_APP_PRIVATE_KEY }}
diff --git a/.github/workflows/release.yaml b/.github/workflows/release.yaml
index c57860da..6597866d 100644
--- a/.github/workflows/release.yaml
+++ b/.github/workflows/release.yaml
@@ -18,9 +18,9 @@ jobs:
 
     steps:
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5 # v4.3.1
 
-      - uses: astral-sh/setup-uv@v5
+      - uses: astral-sh/setup-uv@d4b2f3b6ecc6e67c4457f6d3e41ec42d3d0fcb86 # v5.4.2
         with:
           python-version: ${{ matrix.python-version }}
           enable-cache: true
@@ -29,9 +29,9 @@ jobs:
         run: |
           uv build -v
       - name: Publish release distributions to PyPI
-        uses: pypa/gh-action-pypi-publish@release/v1
+        uses: pypa/gh-action-pypi-publish@ed0c53931b1dc9bd32cbe73a98c7f6766f8a527e # v1.13.0
       - name: Release
-        uses: softprops/action-gh-release@v2
+        uses: softprops/action-gh-release@153bb8e04406b158c6c84fc1615b65b24149a1fe # v2.6.1
         with:
           files: |
             dist/*.whl
diff --git a/.github/workflows/test-suite.yaml b/.github/workflows/test-suite.yaml
index 5c2a4599..cd80c3da 100644
--- a/.github/workflows/test-suite.yaml
+++ b/.github/workflows/test-suite.yaml
@@ -26,16 +26,16 @@ jobs:
 
     steps:
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5 # v4.3.1
 
-      - uses: astral-sh/setup-uv@v5
+      - uses: astral-sh/setup-uv@d4b2f3b6ecc6e67c4457f6d3e41ec42d3d0fcb86 # v5.4.2
         with:
           python-version: ${{ matrix.python-version }}
           enable-cache: true
       # TODO: In the case of Python 3.13+, the following error occurs, so install Python using setup-python.
       #   ../meson.build:44:2: ERROR: Problem encountered: Cannot compile
       #   `Python.h`. Perhaps you need to install python-dev|python-devel
-      - uses: actions/setup-python@v5
+      - uses: actions/setup-python@a26af69be951a213d495a4c3e4e4022e16d87065 # v5.6.0
         with:
           python-version: ${{ matrix.python-version }}
         if: matrix.python-version == '3.13' || matrix.python-version == '3.14'
@@ -43,7 +43,7 @@ jobs:
           make tool
 
       - name: Configure AWS credentials
-        uses: aws-actions/configure-aws-credentials@v4
+        uses: aws-actions/configure-aws-credentials@7474bc4690e29a8392af63c5b98e7449536d5c3a # v4.3.1
         with:
           role-to-assume: arn:aws:iam::676287850544:role/github-actions-oidc-pyathena
           role-session-name: PyAthenaTestSession