diff --git a/.github/workflows/update.yml b/.github/workflows/update.yml
index ca214914d4..cda5d4916b 100644
--- a/.github/workflows/update.yml
+++ b/.github/workflows/update.yml
@@ -27,6 +27,7 @@ jobs:
         run: |
           mkdir -p ${{ runner.temp }}
           echo "${{ secrets.SSH_SIGNING_KEY }}" > ${{ runner.temp }}/signing_key
+          chmod 0700 ${{ runner.temp }}/signing_key
 
       - name: Run Update (Python)
         run: bash ./update.sh