diff --git a/.github/workflows/rootfs.yaml b/.github/workflows/rootfs.yaml
index eb3cef6..8cbec71 100644
--- a/.github/workflows/rootfs.yaml
+++ b/.github/workflows/rootfs.yaml
@@ -21,6 +21,9 @@ jobs:
       matrix:
         arch: ['amd64', 'arm64']
     steps:
+      - name: Generate Timestamp
+        id: timestamp
+        run: echo "::set-output name=value::$(date +%s)"
       - name: configure aws credentials
         uses: aws-actions/configure-aws-credentials@v2
         with: