diff --git a/.github/workflows/auto-approver.yaml b/.github/workflows/auto-approver.yaml
index 5daee84..74302bf 100644
--- a/.github/workflows/auto-approver.yaml
+++ b/.github/workflows/auto-approver.yaml
@@ -10,7 +10,7 @@ jobs:
   autoapprove:
     runs-on: ubuntu-22.04
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@692973e3d937129bcbf40652eb9f2f61becf3332 # v4
       - name: Approve PR
         run: |
           gh pr review --approve || true
diff --git a/.github/workflows/build.yaml b/.github/workflows/build.yaml
index 0e46f89..bf50d1f 100644
--- a/.github/workflows/build.yaml
+++ b/.github/workflows/build.yaml
@@ -8,7 +8,7 @@ jobs:
     runs-on: ubuntu-22.04
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v4
+        uses: actions/checkout@692973e3d937129bcbf40652eb9f2f61becf3332 # v4
 
       - name: Get name
         id: name
@@ -25,12 +25,12 @@ jobs:
         run: syft ${{ steps.rockcraft.outputs.rock }} -o spdx-json=${{ steps.name.outputs.name }}.sbom.json
 
       - name: Upload SBOM
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@a8a3f3ad30e3422c9c7b888a15615d19a852ae32 # v3
         with:
           name: ${{ steps.name.outputs.name }}-sbom
           path: "${{ steps.name.outputs.name }}.sbom.json"
 
-      - uses: actions/upload-artifact@v3
+      - uses: actions/upload-artifact@a8a3f3ad30e3422c9c7b888a15615d19a852ae32 # v3
         with:
           name: rock
           path: ${{ steps.rockcraft.outputs.rock }}
diff --git a/.github/workflows/lint.yaml b/.github/workflows/lint.yaml
index bb1227b..c6634ee 100644
--- a/.github/workflows/lint.yaml
+++ b/.github/workflows/lint.yaml
@@ -16,7 +16,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v4
+        uses: actions/checkout@692973e3d937129bcbf40652eb9f2f61becf3332 # v4
 
       - name: Install yamllint
         run: python3 -m pip install yamllint
diff --git a/.github/workflows/publish.yaml b/.github/workflows/publish.yaml
index d4d2936..7a7ed32 100644
--- a/.github/workflows/publish.yaml
+++ b/.github/workflows/publish.yaml
@@ -8,7 +8,7 @@ jobs:
     runs-on: ubuntu-22.04
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v4
+        uses: actions/checkout@692973e3d937129bcbf40652eb9f2f61becf3332 # v4
 
       - name: Log in to the Container registry
         uses: docker/login-action@b4bedf8053341df3b5a9f9e0f2cf4e79e27360c6
@@ -25,7 +25,7 @@ jobs:
         run: |
           sudo snap install yq
 
-      - uses: actions/download-artifact@v3
+      - uses: actions/download-artifact@9bc31d5ccc31df68ecc42ccf4149144866c47d8a # v3
         with:
           name: rock
 
diff --git a/.github/workflows/scan.yaml b/.github/workflows/scan.yaml
index 2f55d12..d05365d 100644
--- a/.github/workflows/scan.yaml
+++ b/.github/workflows/scan.yaml
@@ -8,7 +8,7 @@ jobs:
     runs-on: ubuntu-22.04
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v4
+        uses: actions/checkout@692973e3d937129bcbf40652eb9f2f61becf3332 # v4
 
       - name: Get name and version
         id: image_info
@@ -24,6 +24,6 @@ jobs:
           output: 'trivy-results.sarif'
 
       - name: Upload scan results to GitHub
-        uses: github/codeql-action/upload-sarif@v2
+        uses: github/codeql-action/upload-sarif@3e0e84636c6f5df46a2cb232ae1dd1384713150d # v2
         with:
           sarif_file: 'trivy-results.sarif'