diff --git a/.github/actions/aws-s3-exchanger/action.yml b/.github/actions/aws-s3-exchanger/action.yml
index 7f2614f..af10dab 100644
--- a/.github/actions/aws-s3-exchanger/action.yml
+++ b/.github/actions/aws-s3-exchanger/action.yml
@@ -89,7 +89,7 @@ runs:
     - name: Upload Pre-signed URL
       id: upload_presigned_url
       if: ${{ inputs.mode == 'upload' }}
-      uses: actions/upload-artifact@v4
+      uses: actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02
       with:
         name: presigned_url_${{ env.IMAGE_NAME }}.txt
         path: ${{ github.workspace }}/presigned_urls/presigned_url_${{ env.IMAGE_NAME }}.txt
diff --git a/.github/actions/build/action.yml b/.github/actions/build/action.yml
index 624d63b..3df60f7 100644
--- a/.github/actions/build/action.yml
+++ b/.github/actions/build/action.yml
@@ -100,7 +100,7 @@ runs:
 
     - name: Upload build.tar
       id: upload_build_tar
-      uses: actions/upload-artifact@v4
+      uses: actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02
       with:
         name: build_${{ env.IMAGE_NAME }}.tar
         path: ${{ github.workspace }}/build_${{ env.IMAGE_NAME }}.tar
diff --git a/.github/actions/build_docker_image/action.yml b/.github/actions/build_docker_image/action.yml
index eb76f92..f0598e4 100644
--- a/.github/actions/build_docker_image/action.yml
+++ b/.github/actions/build_docker_image/action.yml
@@ -11,13 +11,14 @@ runs:
   steps:
     # Checkout ar-image repository to get the Dockerfile
     - name: Checkout ar-image repo for Dockerfile
-      uses: actions/checkout@v4
+      uses: actions/checkout@11d5960a326750d5838078e36cf38b85af677262
       with:
         fetch-depth: 0
         repository: AudioReach/ar-image
+        persist-credentials: false
 
     - name: Set up Docker Buildx
-      uses: docker/setup-buildx-action@v3
+      uses: docker/setup-buildx-action@8d2750c68a42422c14e847fe6c8ac0403b4cbd6f
 
     - name: Pre-Build Docker Image
       id: pre-build
@@ -33,7 +34,7 @@ runs:
 
     - name: Build Docker Image
       id: build
-      uses: docker/build-push-action@v6
+      uses: docker/build-push-action@10e90e3645eae34f1e60eeb005ba3a3d33f178e8
       with:
         context: .
         push: false
diff --git a/.github/actions/lava-test-plans/action.yml b/.github/actions/lava-test-plans/action.yml
index 86a78e2..6430969 100644
--- a/.github/actions/lava-test-plans/action.yml
+++ b/.github/actions/lava-test-plans/action.yml
@@ -78,14 +78,15 @@ runs:
   using: 'composite'
   steps:
     - name: Checkout lava-test-plans
-      uses: actions/checkout@v5
+      uses: actions/checkout@fbc6f3992d24b796d5a048ff273f7fcc4a7b6c09
       with:
         repository: qualcomm-linux-stg/lava-test-plans
         path: lava-test-plans
         ref: sample
+        persist-credentials: false
 
     - name: Setup Python
-      uses: actions/setup-python@v6
+      uses: actions/setup-python@ece7cb06caefa5fff74198d8649806c4678c61a1
       with:
         python-version: '3.11'
 
@@ -237,7 +238,7 @@ runs:
         fi
 
     - name: Upload test jobs artifact
-      uses: actions/upload-artifact@v6
+      uses: actions/upload-artifact@b7c566a772e6b6bfb58ed0dc250532a479d7789f
       with:
         name: ${{ steps.generate-jobs.outputs.artifact_name }}
         path: ${{ steps.generate-jobs.outputs.jobs_path }}/**
@@ -245,7 +246,7 @@ runs:
     - name: Submit first job to LAVA
       id: submit-job
       if: ${{ steps.generate-jobs.outputs.first_job != '' }}
-      uses: foundriesio/lava-action@v9
+      uses: foundriesio/lava-action@fe00b480d3b0f276cb4023052c7f6bc67e805953
       with:
         lava_token: ${{ inputs.lava_token }}
         lava_url: ${{ inputs.lava_url }}
diff --git a/.github/actions/loading/action.yml b/.github/actions/loading/action.yml
index 83e4d65..54b441f 100644
--- a/.github/actions/loading/action.yml
+++ b/.github/actions/loading/action.yml
@@ -17,12 +17,15 @@ runs:
   steps:
     - name: Parse Target_image.json to matrix
       id: parse_matrix
-      uses: actions/github-script@v7
+      uses: actions/github-script@f28e40c7f34bde8b3046d885e986cb6290c5673b
+      env:
+        ACTION_PATH: ${{ github.action_path }}
+        TARGET_IMAGE_FILE: ${{ inputs.target_image_file }}
       with:
         script: |
           const fs = require('fs');
           const path = require('path');
-          const p = `${{ github.action_path }}/${{ inputs.target_image_file }}`;
+          const p = path.join(process.env.ACTION_PATH, process.env.TARGET_IMAGE_FILE);
 
           if (!fs.existsSync(p)) {
             core.setFailed(`Target image file not found: ${p}`);
diff --git a/.github/actions/sync/action.yml b/.github/actions/sync/action.yml
index 06a99ab..629a342 100644
--- a/.github/actions/sync/action.yml
+++ b/.github/actions/sync/action.yml
@@ -21,29 +21,33 @@ runs:
   steps:
     - name: Checkout Code (pull_request_target)
       if: ${{ (inputs.event_name == 'pull_request' || inputs.event_name == 'workflow_call') && inputs.pr_ref != '' && inputs.pr_repo != '' }}
-      uses: actions/checkout@v4   # actions/checkout@v4
+      uses: actions/checkout@11d5960a326750d5838078e36cf38b85af677262   # actions/checkout@11d5960a326750d5838078e36cf38b85af677262
       with:
         fetch-depth: 0  # Fetch all history for all branches and tags
         ref: ${{ inputs.pr_ref }}
         repository: ${{ inputs.pr_repo }}
+        persist-credentials: false
 
     - name: Checkout master (push)
       if: ${{ (inputs.event_name == 'push' || inputs.event_name == 'workflow_call') && inputs.base_ref != '' }}
-      uses: actions/checkout@v4
+      uses: actions/checkout@11d5960a326750d5838078e36cf38b85af677262
       with:
         fetch-depth: 0
         ref: ${{ inputs.base_ref }}
+        persist-credentials: false
 
     - name: Checkout current repo and ref (Fallback)
       if: ${{ (inputs.event_name == 'push' || inputs.event_name == 'workflow_call') && (inputs.base_ref == '' || inputs.pr_repo == '') }}
-      uses: actions/checkout@v4
+      uses: actions/checkout@11d5960a326750d5838078e36cf38b85af677262
       with:
         fetch-depth: 0
         ref: ${{ github.ref }}
+        persist-credentials: false
 
     - name: Checkout for workflow_dispatch
       if: ${{ inputs.event_name == 'workflow_dispatch' }}
-      uses: actions/checkout@v4
+      uses: actions/checkout@11d5960a326750d5838078e36cf38b85af677262
       with:
         fetch-depth: 0
         ref: ${{ inputs.base_ref }}
+        persist-credentials: false
diff --git a/.github/actions/test-job-summary/action.yml b/.github/actions/test-job-summary/action.yml
index 75d8126..75c9b09 100644
--- a/.github/actions/test-job-summary/action.yml
+++ b/.github/actions/test-job-summary/action.yml
@@ -27,7 +27,7 @@ runs:
 
     - name: Download Artifacts
         # This step is safe because inputs are not interpolated into shell.
-      uses: actions/download-artifact@v6
+      uses: actions/download-artifact@018cc2cf5baa6db3ef3c5f8a56943fffe632ef53
       with:
         github-token: ${{ inputs.gh_token }}
         run-id: ${{ inputs.build_id }}
@@ -327,7 +327,7 @@ runs:
 
     - name: Upload summary
       id: upload-summary
-      uses: actions/upload-artifact@v6
+      uses: actions/upload-artifact@b7c566a772e6b6bfb58ed0dc250532a479d7789f
       with:
         path: ${{ inputs.summary_file_name }}
         name: ${{ inputs.summary_file_name }}
diff --git a/.github/workflows/process_image.yml b/.github/workflows/process_image.yml
index 0c130b9..6c06ece 100644
--- a/.github/workflows/process_image.yml
+++ b/.github/workflows/process_image.yml
@@ -71,7 +71,7 @@ jobs:
 
       - name: Download build artifact
         id: download_build_artifact
-        uses: actions/download-artifact@v7
+        uses: actions/download-artifact@37930b1c2abaa49bbe596cd826c3c89aef350131
         with:
           name: build_${{ env.IMAGE_NAME }}.tar
           path: ${{ github.workspace }}
diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index fe750b7..0c31193 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -73,14 +73,15 @@ jobs:
           exit 0
 
       - name: Clone repository
-        uses: actions/checkout@v6
+        uses: actions/checkout@d23441a48e516b6c34aea4fa41551a30e30af803
         with:
           fetch-depth: 0
           repository: AudioReach/meta-audioreach
+          persist-credentials: false
 
       - name: Get build URL
         id: get_build_url
-        uses: actions/github-script@v8
+        uses: actions/github-script@ed597411d8f924073f98dfc5c65a23a2325f34cd
         env:
           BUILD_URLS_JSON: ${{ inputs.build_urls }}
           IMAGE_NAME: ${{ matrix.build_matrix.image_name }}
@@ -141,9 +142,10 @@ jobs:
       summary_id: ${{ steps.generate-summary.outputs.artifact_id }}
 
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@11d5960a326750d5838078e36cf38b85af677262
         with:
           fetch-depth: 0
+          persist-credentials: false
 
       - name: Generate Summary
         id: generate-summary
@@ -154,7 +156,7 @@ jobs:
           summary_file_name: test_job_summary
       
       - name: Download Summaries
-        uses: actions/download-artifact@v6
+        uses: actions/download-artifact@018cc2cf5baa6db3ef3c5f8a56943fffe632ef53
         with:
           pattern: test_job_summary*
           merge-multiple: true