diff --git a/.github/workflows/docker-build-pr.yml b/.github/workflows/docker-build-pr.yml
index 84b665b..0234354 100644
--- a/.github/workflows/docker-build-pr.yml
+++ b/.github/workflows/docker-build-pr.yml
@@ -24,7 +24,7 @@ jobs:
       - uses: actions/checkout@v4
 
       - name: Set up Docker Buildx
-        uses: docker/setup-buildx-action@v3
+        uses: docker/setup-buildx-action@f87e5991a6d7451dcb8d9637bfbc97413f497069 # v4.4.1
 
       - name: Build image (no push)
         uses: docker/build-push-action@v5
diff --git a/.github/workflows/docker.yml b/.github/workflows/docker.yml
index f391bb1..2778874 100644
--- a/.github/workflows/docker.yml
+++ b/.github/workflows/docker.yml
@@ -65,7 +65,7 @@ jobs:
             org.opencontainers.image.description=A demonstration server for OSLC toolchain management of PROject Management of COntracted DElivery
 
       - name: Set up Docker Buildx
-        uses: docker/setup-buildx-action@v3
+        uses: docker/setup-buildx-action@f87e5991a6d7451dcb8d9637bfbc97413f497069 # v4.4.1
 
       - name: Build and push Docker image
         uses: docker/build-push-action@v5