diff --git a/.github/workflows/publish-labctl-image.yml b/.github/workflows/publish-labctl-image.yml
index f5fe124..d6df50e 100644
--- a/.github/workflows/publish-labctl-image.yml
+++ b/.github/workflows/publish-labctl-image.yml
@@ -87,7 +87,7 @@ jobs:
         uses: docker/setup-qemu-action@29109295f81e9208d7d86ff1c6c12d2833863392 # v3.6.0
 
       - name: Set up Buildx
-        uses: docker/setup-buildx-action@e468171a9de216ec08956ac3ada2f0791b6bd435 # v3.11.1
+        uses: docker/setup-buildx-action@4d04d5d9486b7bd6fa91e7baf45bbb4f8b9deedd # v4.0.0
 
       - name: Log in to GHCR
         uses: docker/login-action@5e57cd118135c172c3672efd75eb46360885c0ef # v3.6.0
diff --git a/.github/workflows/publish-service-images.yml b/.github/workflows/publish-service-images.yml
index 7bcc14f..59acf35 100644
--- a/.github/workflows/publish-service-images.yml
+++ b/.github/workflows/publish-service-images.yml
@@ -59,7 +59,7 @@ jobs:
         uses: docker/setup-qemu-action@29109295f81e9208d7d86ff1c6c12d2833863392 # v3.6.0
 
       - name: Setup Buildx
-        uses: docker/setup-buildx-action@e468171a9de216ec08956ac3ada2f0791b6bd435 # v3.11.1
+        uses: docker/setup-buildx-action@4d04d5d9486b7bd6fa91e7baf45bbb4f8b9deedd # v4.0.0
 
       - name: Login to GHCR
         uses: docker/login-action@5e57cd118135c172c3672efd75eb46360885c0ef # v3.6.0