diff --git a/.github/workflows/00_anchore.yml b/.github/workflows/00_anchore.yml
index 802f626..331db2a 100644
--- a/.github/workflows/00_anchore.yml
+++ b/.github/workflows/00_anchore.yml
@@ -35,20 +35,20 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout the code
-        uses: actions/checkout@v3
+        uses: actions/checkout@f43a0e5ff2bd294095638e18286ca9a3d1956744 # v3
 
       - name: Build the Docker image
         run: docker build . --file ${{ env.DOCKERFILE }} --tag localbuild/testimage:latest
 
       - name: Run the Anchore scan action itself with GitHub Advanced Security code scanning integration enabled
-        uses: anchore/scan-action@v3
+        uses: anchore/scan-action@3343887d815d7b07465f6fdcd395bd66508d486a # v3
         with:
           image: "localbuild/testimage:latest"
           acs-report-enable: true
           fail-build: true
           severity-cutoff: "high"
       - name: Upload Anchore Scan Report
-        uses: github/codeql-action/upload-sarif@v2
+        uses: github/codeql-action/upload-sarif@cb6549f9103a3855e5c5084c8f44b706e1b0a83f # v2
         if: always()
         with:
           sarif_file: results.sarif
diff --git a/.github/workflows/01_add_patch_label.yml b/.github/workflows/01_add_patch_label.yml
index 00e0fc5..c0002b9 100644
--- a/.github/workflows/01_add_patch_label.yml
+++ b/.github/workflows/01_add_patch_label.yml
@@ -19,7 +19,7 @@ jobs:
     steps:
       - name: Check user labels
         id: check_user_labels
-        uses: actions/github-script@v6.3.3
+        uses: actions/github-script@d556feaca394842dc55e4734bf3bb9f685482fa0 # v6.3.3
         with:
           github-token: ${{ secrets.GITHUB_TOKEN }}
           script: |
@@ -48,7 +48,7 @@ jobs:
 
       - name: Add comment
         if: ${{ steps.check_user_labels.outputs.result == 'true' }}
-        uses: actions/github-script@v6.3.3
+        uses: actions/github-script@d556feaca394842dc55e4734bf3bb9f685482fa0 # v6.3.3
         with:
           github-token: ${{ secrets.GITHUB_TOKEN }}
           script: |
diff --git a/.github/workflows/01_assignee.yml b/.github/workflows/01_assignee.yml
index 0611917..cf22668 100644
--- a/.github/workflows/01_assignee.yml
+++ b/.github/workflows/01_assignee.yml
@@ -21,6 +21,6 @@ jobs:
     steps:
       - name: Assign Me
         # You may pin to the exact commit or the version.
-        uses: kentaro-m/auto-assign-action@v1.2.1
+        uses: kentaro-m/auto-assign-action@746a3a558fdd0e061f612ec9f8ff1b8a19c1a115 # v1.2.1
         with:
           configuration-path: '.github/auto_assign.yml'
diff --git a/.github/workflows/02_check_pr.yml b/.github/workflows/02_check_pr.yml
index 0763155..639de74 100644
--- a/.github/workflows/02_check_pr.yml
+++ b/.github/workflows/02_check_pr.yml
@@ -24,7 +24,7 @@ jobs:
     steps:
       - name: Assign Me
         # You may pin to the exact commit or the version.
-        uses: kentaro-m/auto-assign-action@v1.2.1
+        uses: kentaro-m/auto-assign-action@746a3a558fdd0e061f612ec9f8ff1b8a19c1a115 # v1.2.1
         with:
           configuration-path: '.github/auto_assign.yml'
 
@@ -33,7 +33,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v3
+        uses: actions/checkout@f43a0e5ff2bd294095638e18286ca9a3d1956744 # v3
 
       - name: Formatting
         id: format
@@ -43,7 +43,7 @@ jobs:
           path: .
           fail-on-changes: false
 
-      - uses: actions/github-script@v6.3.3
+      - uses: actions/github-script@d556feaca394842dc55e4734bf3bb9f685482fa0 # v6.3.3
         if: steps.format.outcome != 'success'
         with:
           github-token: ${{ secrets.GITHUB_TOKEN }}
@@ -77,12 +77,12 @@ jobs:
     runs-on: ubuntu-latest
     name: Check Size
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@f43a0e5ff2bd294095638e18286ca9a3d1956744 # v3
         with:
           fetch-depth: 0
 
       - name: Check Size
-        uses: actions/github-script@v6.3.3
+        uses: actions/github-script@d556feaca394842dc55e4734bf3bb9f685482fa0 # v6.3.3
         env:
           IGNORED_FILES: openapi.json, openapi-node.json
         with:
diff --git a/.github/workflows/03_code_review.yml b/.github/workflows/03_code_review.yml
index 01ce0fb..8f42222 100644
--- a/.github/workflows/03_code_review.yml
+++ b/.github/workflows/03_code_review.yml
@@ -35,7 +35,7 @@ jobs:
     # Steps represent a sequence of tasks that will be executed as part of the job
     steps:
       - name: Code Review
-        uses: pagopa/github-actions-template/maven-code-review@v1.8.3
+        uses: pagopa/github-actions-template/maven-code-review@de4ca1ddefb1461c176cc42259e494158b578fe3 # v1.8.3
         with:
           github_token: ${{ secrets.GITHUB_TOKEN }}
           sonar_token: ${{ secrets.SONAR_TOKEN }}
diff --git a/.github/workflows/04_release_deploy.yml b/.github/workflows/04_release_deploy.yml
index 85f3912..60e60bf 100644
--- a/.github/workflows/04_release_deploy.yml
+++ b/.github/workflows/04_release_deploy.yml
@@ -104,7 +104,7 @@ jobs:
     steps:
       - name: Build and Push
         id: semver
-        uses: pagopa/github-actions-template/ghcr-build-push@v1.5.4
+        uses: pagopa/github-actions-template/ghcr-build-push@d91a1fd0b913c9830589be5d86cdb71c90813fae # v1.5.4
         with:
           branch: ${{ github.ref_name}}
           github_token: ${{ secrets.GITHUB_TOKEN }}
@@ -134,7 +134,7 @@ jobs:
     steps:
       - name: Report Status
         if: always()
-        uses: ravsamhq/notify-slack-action@v2
+        uses: ravsamhq/notify-slack-action@be814b201e233b2dc673608aa46e5447c8ab13f2 # v2
         with:
           status: ${{ needs.deploy_azure_fn.result }}
           token: ${{ secrets.GITHUB_TOKEN }}