diff --git a/.github/workflows/clusterloader2-release.yml b/.github/workflows/clusterloader2-release.yml
index 5c131a8d54..f41d8f399d 100644
--- a/.github/workflows/clusterloader2-release.yml
+++ b/.github/workflows/clusterloader2-release.yml
@@ -16,10 +16,10 @@ jobs:
 
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v4
+        uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
 
       - name: Log in to GitHub Container Registry
-        uses: docker/login-action@v3
+        uses: docker/login-action@9780b0c442fbb1117ed29e0efdff1e18412f7567 #v3.3.0
         with:
           registry: ghcr.io
           username: ${{ github.actor }}
diff --git a/.github/workflows/docker-publish-nptest.yml b/.github/workflows/docker-publish-nptest.yml
index 8b76458121..a524b126b0 100644
--- a/.github/workflows/docker-publish-nptest.yml
+++ b/.github/workflows/docker-publish-nptest.yml
@@ -15,16 +15,16 @@ jobs:
 
     steps:
     - name: Checkout repository
-      uses: actions/checkout@v4
+      uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
 
     - name: Set up QEMU
-      uses: docker/setup-qemu-action@v3
+      uses: docker/setup-qemu-action@4574d27a4764455b42196d70a065bc6853246a25 # v3.4.0
     
     - name: Set up Docker Buildx
-      uses: docker/setup-buildx-action@v3
+      uses: docker/setup-buildx-action@f7ce87c1d6bead3e36075b2ce75da1f6cc28aaca # v3.9.0
 
     - name: Log in to GitHub Container Registry
-      uses: docker/login-action@v3
+      uses: docker/login-action@9780b0c442fbb1117ed29e0efdff1e18412f7567 #v3.3.0
       with:
         registry: ghcr.io
         username: ${{ github.actor }}