diff --git a/.forgejo/workflows/demo.yaml b/.forgejo/workflows/demo.yaml
index 2d0ab80..af55904 100644
--- a/.forgejo/workflows/demo.yaml
+++ b/.forgejo/workflows/demo.yaml
@@ -7,6 +7,7 @@ jobs:
     steps:
       - uses: actions/checkout@v4
       - run: echo "${{secrets.SSH_PRIV_KEY}}" > ./pub_key
+      - run: chmod 600 ./pub_key
       - run: cat ./pub_key
       - run: ssh -i ./pub_key job@airflow.local hostname
       - run: ls -al