diff --git a/.github/workflows/auto-labeler.yml b/.github/workflows/auto-labeler.yml
index a13ee68..8f9a5af 100644
--- a/.github/workflows/auto-labeler.yml
+++ b/.github/workflows/auto-labeler.yml
@@ -21,7 +21,7 @@
       name: Auto label pull requests
       runs-on: ubuntu-latest
       steps:
-        - uses: release-drafter/release-drafter@v6
+        - uses: release-drafter/release-drafter@3f0f87098bd6b5c5b9a36d49c41d998ea58f9348
           env:
             GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
           with:
diff --git a/.github/workflows/contributors_report.yaml b/.github/workflows/contributors_report.yaml
index 9ec7803..fbadf5b 100644
--- a/.github/workflows/contributors_report.yaml
+++ b/.github/workflows/contributors_report.yaml
@@ -30,7 +30,7 @@ jobs:
           echo "END_DATE=$end_date" >> "$GITHUB_ENV"
 
       - name: Run contributor action
-        uses: github/contributors@v1
+        uses: github/contributors@832b6518181710ef277bc9ddafda6696e6b312bd
         env:
           GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
           START_DATE: ${{ env.START_DATE }}
@@ -39,7 +39,7 @@ jobs:
           SPONSOR_INFO: "true"
 
       - name: Create issue
-        uses: peter-evans/create-issue-from-file@v5
+        uses: peter-evans/create-issue-from-file@24452a72d85239eacf1468b0f1982a9f3fec4c94
         with:
           title: Monthly contributor report
           token: ${{ secrets.GITHUB_TOKEN }}
diff --git a/.github/workflows/docker-ci.yml b/.github/workflows/docker-ci.yml
index 3104310..42f92cf 100644
--- a/.github/workflows/docker-ci.yml
+++ b/.github/workflows/docker-ci.yml
@@ -16,6 +16,6 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@0ad4b8fadaa221de15dcec353f45205ec38ea70b
       - name: Build the Docker image
         run: docker build . --file Dockerfile --platform linux/amd64
diff --git a/.github/workflows/major-version-updater.yml b/.github/workflows/major-version-updater.yml
index 05dad0b..fdfd737 100644
--- a/.github/workflows/major-version-updater.yml
+++ b/.github/workflows/major-version-updater.yml
@@ -15,7 +15,7 @@ jobs:
       contents: write
     steps:
       - name: Checkout Repo
-        uses: actions/checkout@v4
+        uses: actions/checkout@0ad4b8fadaa221de15dcec353f45205ec38ea70b
 
       - name: version
         id: version
diff --git a/.github/workflows/pr-title.yml b/.github/workflows/pr-title.yml
index 5be9274..250d963 100644
--- a/.github/workflows/pr-title.yml
+++ b/.github/workflows/pr-title.yml
@@ -20,7 +20,7 @@ jobs:
     name: Validate PR title
     runs-on: ubuntu-latest
     steps:
-      - uses: amannn/action-semantic-pull-request@v5
+      - uses: amannn/action-semantic-pull-request@e9fabac35e210fea40ca5b14c0da95a099eff26f
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
         with:
diff --git a/.github/workflows/python-ci.yml b/.github/workflows/python-ci.yml
index 4881335..ecbff47 100644
--- a/.github/workflows/python-ci.yml
+++ b/.github/workflows/python-ci.yml
@@ -21,9 +21,9 @@ jobs:
         python-version: [3.11, 3.12]
 
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@0ad4b8fadaa221de15dcec353f45205ec38ea70b
       - name: Set up Python ${{ matrix.python-version }}
-        uses: actions/setup-python@v5
+        uses: actions/setup-python@82c7e631bb3cdc910f68e0081d67478d79c6982d
         with:
           python-version: ${{ matrix.python-version }}
       - name: Install dependencies
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 8ace7f6..e19a0d9 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -33,7 +33,7 @@ jobs:
       contents: write
       pull-requests: read
     steps:
-      - uses: release-drafter/release-drafter@v6
+      - uses: release-drafter/release-drafter@3f0f87098bd6b5c5b9a36d49c41d998ea58f9348
         id: release-drafter
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
@@ -55,17 +55,17 @@ jobs:
       IMAGE_NAME: ${{ github.repository }}
     steps:
       - name: Set up Docker Buildx
-        uses: docker/setup-buildx-action@v3
+        uses: docker/setup-buildx-action@d70bba72b1f3fd22344832f00baa16ece964efeb
       - name: Log in to the Container registry
-        uses: docker/login-action@v3
+        uses: docker/login-action@e92390c5fb421da1463c202d546fed0ec5c39f20
         with:
           registry: ${{ env.REGISTRY }}
           username: ${{ github.actor }}
           password: ${{ secrets.GITHUB_TOKEN }}
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@0ad4b8fadaa221de15dcec353f45205ec38ea70b
       - name: Push Docker Image
         if: ${{ success() }}
-        uses: docker/build-push-action@v5
+        uses: docker/build-push-action@2cdde995de11925a030ce8070c3d77a52ffcf1c0
         with:
           context: .
           file: ./Dockerfile
@@ -84,7 +84,7 @@ jobs:
       discussions: write
     steps:
       - name: Create an announcement discussion for release
-        uses: abirismyname/create-discussion@v1.2.0
+        uses: abirismyname/create-discussion@6e6ef67e5eeb042343ef8b3d8d0f5d545cbdf024
         env:
           GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
         with:
diff --git a/.github/workflows/scorecard.yml b/.github/workflows/scorecard.yml
new file mode 100644
index 0000000..ac47aaf
--- /dev/null
+++ b/.github/workflows/scorecard.yml
@@ -0,0 +1,47 @@
+---
+name: Scorecard supply-chain security
+on:
+  workflow_dispatch:
+  # For Branch-Protection check (for repo branch protection or rules).
+  # Only the default branch is supported. See
+  # https://github.com/ossf/scorecard/blob/main/docs/checks.md#branch-protection
+  branch_protection_rule:
+  # To guarantee Maintained check is occasionally updated. See
+  # https://github.com/ossf/scorecard/blob/main/docs/checks.md#maintained
+  schedule:
+    - cron: '29 11 * * 6'
+  push:
+    branches: ["main"]
+
+permissions: read-all
+
+jobs:
+  analysis:
+    name: Merge to Main Scorecard analysis
+    runs-on: ubuntu-latest
+    permissions:
+      security-events: write
+      id-token: write
+
+    steps:
+      - name: "Checkout code"
+        uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11 # v4.1.1
+        with:
+          persist-credentials: false
+
+      - name: "Run analysis"
+        uses: ossf/scorecard-action@0864cf19026789058feabb7e87baa5f140aac736 # v2.3.1
+        with:
+          results_file: results.sarif
+          results_format: sarif
+          publish_results: true
+      - name: "Upload artifact"
+        uses: actions/upload-artifact@97a0fba1372883ab732affbe8f94b823f91727db # v3.pre.node20
+        with:
+          name: SARIF file
+          path: results.sarif
+          retention-days: 5
+      - name: "Upload to code-scanning"
+        uses: github/codeql-action/upload-sarif@1b1aada464948af03b950897e5eb522f92603cc2 # v3.24.9
+        with:
+          sarif_file: results.sarif
diff --git a/.github/workflows/stale.yaml b/.github/workflows/stale.yaml
index 712da79..a101eb5 100644
--- a/.github/workflows/stale.yaml
+++ b/.github/workflows/stale.yaml
@@ -14,7 +14,7 @@ jobs:
       issues: write
       pull-requests: read
     steps:
-      - uses: actions/stale@v9
+      - uses: actions/stale@28ca1036281a5e5922ead5184a1bbf96e5fc984e
         with:
           stale-issue-message: 'This issue is stale because it has been open 21 days with no activity. Remove stale label or comment or this will be closed in 14 days.'
           close-issue-message: 'This issue was closed because it has been stalled for 35 days with no activity.'
diff --git a/.github/workflows/super-linter.yaml b/.github/workflows/super-linter.yaml
index 49559be..b151a65 100644
--- a/.github/workflows/super-linter.yaml
+++ b/.github/workflows/super-linter.yaml
@@ -20,7 +20,7 @@ jobs:
 
     steps:
       - name: Checkout Code
-        uses: actions/checkout@v4
+        uses: actions/checkout@0ad4b8fadaa221de15dcec353f45205ec38ea70b
         with:
           fetch-depth: 0
       - name: Install dependencies
@@ -28,7 +28,7 @@ jobs:
           python -m pip install --upgrade pip
           pip install -r requirements.txt -r requirements-test.txt
       - name: Lint Code Base
-        uses: super-linter/super-linter@v6
+        uses: super-linter/super-linter@4758be622215d0954c8353ee4877ffd60111cf8e
         env:
           DEFAULT_BRANCH: main
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
diff --git a/Dockerfile b/Dockerfile
index f1b7653..9c19fde 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,6 +1,6 @@
 #checkov:skip=CKV_DOCKER_2
 #checkov:skip=CKV_DOCKER_3
-FROM python:3.12-slim
+FROM python:3.12-slim@sha256:2be8daddbb82756f7d1f2c7ece706aadcb284bf6ab6d769ea695cc3ed6016743
 LABEL org.opencontainers.image.source https://github.com/github/cleanowners
 
 WORKDIR /action/workspace
diff --git a/README.md b/README.md
index 3c7462e..bbf2e4d 100644
--- a/README.md
+++ b/README.md
@@ -1,6 +1,7 @@
 # Cleanowners action
 
 [![CodeQL](https://github.com/github/cleanowners/actions/workflows/github-code-scanning/codeql/badge.svg)](https://github.com/github/cleanowners/actions/workflows/github-code-scanning/codeql) [![Lint Code Base](https://github.com/github/cleanowners/actions/workflows/super-linter.yaml/badge.svg)](https://github.com/github/cleanowners/actions/workflows/super-linter.yaml) [![Python package](https://github.com/github/cleanowners/actions/workflows/python-ci.yml/badge.svg)](https://github.com/github/cleanowners/actions/workflows/python-ci.yml) [![Docker Image CI](https://github.com/github/cleanowners/actions/workflows/docker-ci.yml/badge.svg)](https://github.com/github/cleanowners/actions/workflows/docker-ci.yml)
+[![OpenSSF Scorecard](https://api.scorecard.dev/projects/github.com/github/cleanowners/badge)](https://scorecard.dev/viewer/?uri=github.com/github/cleanowners)
 
 Cleanowners is a GitHub Action that is designed to help keep `CODEOWNERS` files current by removing users that are no longer a part of the organization. This is helpful for companies that are looking to remove outdated information in the `CODEOWNERS` file. This action can be paired with other `CODEOWNERS` related actions to suggest new owners or lint `CODEOWNERS` files to ensure accuracy.