diff --git a/.github/workflows/devcontainer.yml b/.github/workflows/devcontainer.yml
index 6053af7..03b676d 100644
--- a/.github/workflows/devcontainer.yml
+++ b/.github/workflows/devcontainer.yml
@@ -44,6 +44,8 @@ jobs:
         uses: docker/setup-buildx-action@d70bba72b1f3fd22344832f00baa16ece964efeb
         with:
           use: true
+        env:
+          BUILDX_NO_DEFAULT_ATTESTATIONS: 1
 
       - name: Log in to the Container registry
         uses: docker/login-action@65b78e6e13532edd9afa3aa52ac7964289d1a9c1
@@ -53,7 +55,7 @@ jobs:
           password: ${{ secrets.GITHUB_TOKEN }}
 
       - name: 'Set up skopeo'
-        uses: warjiang/setup-skopeo@latest
+        uses: warjiang/setup-skopeo@71776e03c10d767c04af8924fe5a67763f9b3d34
         with:
           version: latest