diff --git a/.gitea/workflows/publish.yml b/.gitea/workflows/publish.yml
index 48d9206..ea0664f 100644
--- a/.gitea/workflows/publish.yml
+++ b/.gitea/workflows/publish.yml
@@ -27,6 +27,7 @@ jobs:
         run: |
           eval "$(ssh-agent -s)"
           echo "$SSH_KEY" >> ~/.ssh/id_rsa
+          chmod 400 ~/.ssh/id_rsa
           ssh-add ~/.ssh/id_rsa
           shasum -a 256 ~/.ssh/id_rsa