diff --git a/installer.sh b/installer.sh
index afe86d8..bffae4f 100644
--- a/installer.sh
+++ b/installer.sh
@@ -802,9 +802,7 @@ git config --global --add safe.directory "${APP_DIR}" || true
 
 # ===== Version-Datei schreiben =====
 mkdir -p /var/lib/mailwolt
-sudo -u "$APP_USER" -H bash -lc "git -C ${APP_DIR} fetch --unshallow 2>/dev/null || true"
-sudo -u "$APP_USER" -H bash -lc "git -C ${APP_DIR} fetch --tags origin 2>/dev/null || true"
-GIT_TAG="$(sudo -u "$APP_USER" -H bash -lc "git -C ${APP_DIR} describe --tags --abbrev=0 2>/dev/null || echo ''")"
+GIT_TAG="$(sudo -u "$APP_USER" -H bash -lc "git -C ${APP_DIR} ls-remote --tags --sort=-v:refname origin 'v*' 2>/dev/null | grep -v '\^{}' | head -1 | sed 's|.*refs/tags/||'")"
 if [ -n "$GIT_TAG" ]; then
   echo "${GIT_TAG#v}" > /var/lib/mailwolt/version
   echo "$GIT_TAG"     > /var/lib/mailwolt/version_raw