diff --git a/.github/workflows/publish-immutable-actions.yml b/.github/workflows/publish-immutable-actions.yml
index 44d571b..7f49c64 100644
--- a/.github/workflows/publish-immutable-actions.yml
+++ b/.github/workflows/publish-immutable-actions.yml
@@ -17,4 +17,4 @@ jobs:
         uses: actions/checkout@v6
       - name: Publish
         id: publish
-        uses: actions/publish-immutable-action@0.0.3
+        uses: actions/publish-immutable-action@v0.0.4
diff --git a/.github/workflows/update-test-ubuntu-git.yml b/.github/workflows/update-test-ubuntu-git.yml
index 10e4dac..721fe04 100644
--- a/.github/workflows/update-test-ubuntu-git.yml
+++ b/.github/workflows/update-test-ubuntu-git.yml
@@ -31,7 +31,7 @@ jobs:
       # Use `docker/login-action` to log in to GHCR.io. 
       # Once published, the packages are scoped to the account defined here.
       - name: Log in to the ghcr.io container registry
-        uses: docker/login-action@v3.3.0
+        uses: docker/login-action@v3.7.0
         with:
           registry: ${{ env.REGISTRY }}
           username: ${{ github.actor }}
@@ -48,7 +48,7 @@ jobs:
 
       # Use `docker/build-push-action` to build (and optionally publish) the image. 
       - name: Build Docker Image (with optional Push)
-        uses: docker/build-push-action@v6.5.0
+        uses: docker/build-push-action@v6.19.2
         with:
           context: .
           file: images/test-ubuntu-git.Dockerfile