diff --git a/.github/workflows/update_readme.yml b/.github/workflows/update_readme.yml
index b84d3a7..ca12f81 100644
--- a/.github/workflows/update_readme.yml
+++ b/.github/workflows/update_readme.yml
@@ -14,12 +14,12 @@ jobs:
         ref: main
     - name: Update README
       run: |
+        date=$(date +%Y%m%d --date='last sunday')
         echo $(date)
-        date=$(date +%Y%m%d)
         current_time=$(grep -Eo '[0-9]{8}' run-node-mainnetv2.md |head -n1)
         sed -i "s/${current_time}/$date/g" run-node-mainnetv2.md
         git config --global user.email "git.action@mantle.xyz"
         git config --global user.name "mantle-github-bot"
         git add run-node-mainnetv2.md
         git commit -m "update snapshot tar date"
-        git push https://mantle-github-bot:${{ secrets.PAT }}@github.com/mantlenetworkio/networks.git main
\ No newline at end of file
+        git push https://mantle-github-bot:${{ secrets.PAT }}@github.com/mantlenetworkio/networks.git main