diff --git a/.github/workflows/ci-lint.yml b/.github/workflows/ci-lint.yml
index dede434..2632651 100644
--- a/.github/workflows/ci-lint.yml
+++ b/.github/workflows/ci-lint.yml
@@ -5,17 +5,21 @@ on:
   push:
      branches: [master]
 
+permissions:
+  contents: read
+
 jobs:
   pre-commit:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v4.1.7
+    - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
       with:
         # Ensure the full history is fetched
         # This is required to run pre-commit on a specific set of commits
         # TODO: Remove this when all the pre-commit issues are fixed
         fetch-depth: 0
-    - uses: actions/setup-python@v5.1.1
+        persist-credentials: false
+    - uses: actions/setup-python@42375524e23c412d93fb67b49958b491fce71c38 # v5.4.0
       with:
         python-version: 3.13
-    - uses: pre-commit/action@v3.0.1
+    - uses: pre-commit/action@2c7b3805fd2a0fd8c1884dcaebf91fc102a13ecd # v3.0.1
diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index d423e14..3576323 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -8,6 +8,9 @@ on:
       - 'docs/**'
   workflow_dispatch:
 
+permissions:
+  contents: read
+
 env:
   USE_BAZEL_VERSION: "7.7.0"
 
@@ -20,10 +23,12 @@ jobs:
         python-version: ['3.10', '3.11', '3.12', '3.13']
 
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
+      with:
+        persist-credentials: false
 
     - name: Set up Python ${{ matrix.python-version }}
-      uses: actions/setup-python@v5
+      uses: actions/setup-python@42375524e23c412d93fb67b49958b491fce71c38 # v5.4.0
       with:
         python-version: ${{ matrix.python-version }}
         cache: 'pip'
diff --git a/.github/workflows/wheels.yml b/.github/workflows/wheels.yml
index bfb7fdd..75542bb 100644
--- a/.github/workflows/wheels.yml
+++ b/.github/workflows/wheels.yml
@@ -6,10 +6,12 @@ on:
   release:
     types: [published]
 
+permissions:
+  contents: read
+
 env:
   USE_BAZEL_VERSION: "7.7.0"
 
-
 jobs:
   build:
     name: >
@@ -21,14 +23,15 @@ jobs:
         os: [ubuntu, macos]
         python-version: ['3.10', '3.11', '3.12', '3.13']
 
-
     runs-on: ${{ format('{0}-latest', matrix.os) }}
     steps:
     - name: Check out the repo
-      uses: actions/checkout@v4
+      uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
+      with:
+        persist-credentials: false
 
     - name: Set up python
-      uses: actions/setup-python@v5
+      uses: actions/setup-python@42375524e23c412d93fb67b49958b491fce71c38 # v5.4.0
       with:
         python-version: ${{ matrix.python-version }}
 
@@ -61,7 +64,7 @@ jobs:
         twine check wheelhouse/*
 
     - name: Upload wheels
-      uses: actions/upload-artifact@v4
+      uses: actions/upload-artifact@65c4c4a1ddee5b72f698fdd19549f0f0fb45cf08 # v4.6.0
       with:
         name: build-${{ matrix.python-version }}-${{ matrix.os }}
         path: ./wheelhouse/*
@@ -75,10 +78,11 @@ jobs:
       name: pypi
       url: https://pypi.org/p/tensorflow-metadata
     permissions:
+      contents: read
       id-token: write
     steps:
       - name: Retrieve wheels and sdist
-        uses: actions/download-artifact@v4
+        uses: actions/download-artifact@fa0a91b85d4f404e444e00e005971372dc801d16 # v4.1.8
         with:
           merge-multiple: true
           path: wheels/
@@ -88,7 +92,8 @@ jobs:
           ls -lAs wheels/
 
       - name: Upload to PyPI
-        uses: pypa/gh-action-pypi-publish@release/v1.12
+        # zizmor: ignore[use-trusted-publishing]
+        uses: pypa/gh-action-pypi-publish@dc37677b2e1c63e2034f94d8a5b11f265b73ba33 # release/v1
         with:
           password: ${{ secrets.PYPI_API_TOKEN }}
           packages-dir: wheels/