diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index cfe5796..fed1176 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -28,10 +28,10 @@ jobs:
 
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v4
+        uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11 # v4
 
       - name: Log in to the Container registry
-        uses: docker/login-action@v3.0.0
+        uses: docker/login-action@343f7c4344506bcbf9b4de18042ae17996df046d # v3.0.0
         with:
           registry: ${{ env.REGISTRY }}
           username: ${{ github.actor }}
@@ -40,7 +40,7 @@ jobs:
 
       - name: Extract metadata (tags, labels) for Docker
         id: meta
-        uses: docker/metadata-action@v5.0.0
+        uses: docker/metadata-action@96383f45573cb7f253c731d3b3ab81c87ef81934 # v5.0.0
         with:
           images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
         if: github.ref == 'refs/heads/main'
diff --git a/.github/workflows/linting.yml b/.github/workflows/linting.yml
index 76b5ce8..51959db 100644
--- a/.github/workflows/linting.yml
+++ b/.github/workflows/linting.yml
@@ -12,9 +12,9 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Check out code
-        uses: actions/checkout@v4
+        uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11 # v4
 
       - name: Run ShellCheck
-        uses: ludeeus/action-shellcheck@2.0.0
+        uses: ludeeus/action-shellcheck@00cae500b08a931fb5698e11e79bfbd38e612a38 # 2.0.0
         env:
           SHELLCHECK_OPTS: -e SC1003