diff --git a/deploy.firebase.sh b/deploy.firebase.sh
index a64a771..38cf12b 100755
--- a/deploy.firebase.sh
+++ b/deploy.firebase.sh
@@ -30,16 +30,18 @@ cd $outdir
 
 (
    set -ueo pipefail
-   if ! tty; then
-      printf "https://gitlab%40breel.dev:%s@gitlab.com\n" "$GITLAB_PAT" > "$HOME/.git-credentials"
+   if [ -n "$GITLAB_PAT" ]; then
+      export HOME="$(mktemp -d)"
+      git clone https://gitlab%40breel.dev:"$GITLAB_PAT"@gitlab.com/breel/resume.git gitlab-resume.d
+      git config --global user.name "gitlab@breel.dev"
+      git config --global user.email "gitlab@breel.dev"
+      rm -rf ./gitlab-resume.d/*
+      cp -r ./public/* ./gitlab-resume.d/
+      cd ./gitlab-resume.d/
+      git add -A :/
+      git commit -m "$(date -u +%Y-%m-%dT%H:%M:%S)"
+      git push origin main
    fi
-   git clone https://gitlab.com/breel/resume.git gitlab-resume.d
-   rm -rf ./gitlab-resume.d/*
-   cp -r ./public/* ./gitlab-resume.d/
-   cd ./gitlab-resume.d/
-   git add -A :/
-   git commit -m "$(date -u +%Y-%m-%dT%H:%M:%S)"
-   git push origin main
 ) || true
 
 (