diff --git a/update.sh b/update.sh
index 8ce42e2..04844af 100644
--- a/update.sh
+++ b/update.sh
@@ -199,6 +199,23 @@ if ! ensure_cmd BDInfoDataSubstractor; then
   popd >/dev/null
 fi
 
+# Modules npm locaux dans $AUTOPOST_DIR
+log "Vérification modules npm"
+pushd "$AUTOPOST_DIR" >/dev/null
+[ -f package.json ] || npm init -y >/dev/null 2>&1 || true
+modules=(express express-session sqlite3 ansi-to-html @tailwindcss/browser autoprefixer jquery mysql2 session-file-store chokidar)
+missing=()
+for m in "${modules[@]}"; do
+  npm list "$m" --depth=0 >/dev/null 2>&1 || missing+=("$m")
+done
+if [ "${#missing[@]}" -gt 0 ]; then
+  log "Installation modules: ${missing[*]}"
+  npm install "${missing[@]}"
+else
+  ok "Tous les modules npm sont présents"
+fi
+popd >/dev/null
+
 # ────────── VALIDATION conf.sh (sans exécuter) ──────────
 # --- conf.sh : validation déclarative ---
 check_conf() {