diff --git a/scripts/88-update-wrapper.sh b/scripts/88-update-wrapper.sh
index 5b9e4cf..9da2c9f 100644
--- a/scripts/88-update-wrapper.sh
+++ b/scripts/88-update-wrapper.sh
@@ -70,20 +70,25 @@ echo "running" > "$STATE_DIR/state"
 
   # ── Version schreiben (aus App-Repo, Fallback Installer) ─────────────────────
   if command -v git >/dev/null 2>&1; then
-    if [ -d /var/www/mailwolt/.git ]; then
-      cd /var/www/mailwolt >/dev/null 2>&1 || true
-    elif [ -d /opt/mailwolt-installer/.git ]; then
-      cd /opt/mailwolt-installer >/dev/null 2>&1 || true
+    SRC="/var/www/mailwolt"
+    if [ ! -d "$SRC/.git" ]; then
+      SRC="/opt/mailwolt-installer"
     fi
 
-    raw="$(git describe --tags --always --dirty 2>/dev/null || echo "unknown")"
-    norm="$(printf '%s' "$raw" | sed -E 's/^v//; s/-.*$//')"
+    # falls shallow: Tags nachziehen
+    if [ -f "$SRC/.git/shallow" ]; then
+      git -C "$SRC" fetch --unshallow --quiet || true
+    fi
+    git -C "$SRC" fetch --tags --quiet origin || true
+
+    raw="$(git -C "$SRC" describe --tags --always --dirty 2>/dev/null || echo "unknown")"
+    norm="$(printf '%s' "$raw" | sed -E 's/^[vV]//; s/-.*$//')"
 
     printf '%s\n' "$raw"  > /var/lib/mailwolt/version_raw
     printf '%s\n' "$norm" > /var/lib/mailwolt/version
     chmod 0644 /var/lib/mailwolt/version_raw /var/lib/mailwolt/version
 
-    echo "[i] Version aktualisiert: raw=$raw norm=$norm (Quelle: $(pwd))"
+    echo "[i] Version aktualisiert: raw=$raw norm=$norm (Quelle: $SRC)"
   else
     echo "unknown" > /var/lib/mailwolt/version_raw
     echo "0.0.0"   > /var/lib/mailwolt/version