diff --git a/polkadot/.github/workflows/publish-docker-manual.yml b/polkadot/.github/workflows/publish-docker-manual.yml
index d073145e0f..08613e6b8e 100644
--- a/polkadot/.github/workflows/publish-docker-manual.yml
+++ b/polkadot/.github/workflows/publish-docker-manual.yml
@@ -19,7 +19,7 @@ jobs:
       - name: Checkout sources
         uses: actions/checkout@v3
       - name: Set up Docker Buildx
-        uses: docker/setup-buildx-action@v1
+        uses: docker/setup-buildx-action@f211e3e9ded2d9377c8cadc4489a4e38014bc4c9 # v1.7
       - name: Cache Docker layers
         uses: actions/cache@v2
         with:
diff --git a/polkadot/.github/workflows/publish-docker-release.yml b/polkadot/.github/workflows/publish-docker-release.yml
index b4873d8eb8..f4996643d3 100644
--- a/polkadot/.github/workflows/publish-docker-release.yml
+++ b/polkadot/.github/workflows/publish-docker-release.yml
@@ -12,7 +12,7 @@ jobs:
       - name: Checkout sources
         uses: actions/checkout@v3
       - name: Set up Docker Buildx
-        uses: docker/setup-buildx-action@v1
+        uses: docker/setup-buildx-action@f211e3e9ded2d9377c8cadc4489a4e38014bc4c9 # v1.7
       - name: Cache Docker layers
         uses: actions/cache@v2
         with: