diff --git a/setup.sh b/setup.sh
index e7d1a8d..9d2abf5 100644
--- a/setup.sh
+++ b/setup.sh
@@ -19,8 +19,8 @@ echo ""
 
 # ── 1. Install system packages ────────────────────────────────────────────────
 echo "[1/6] Installing Nginx (forcing IPv4 to avoid IPv6 timeouts)..."
-sudo apt-get update
-sudo apt-get install -y nginx
+sudo apt-get -o Acquire::ForceIPv4=true update
+sudo apt-get -o Acquire::ForceIPv4=true install -y nginx
 
 # ── 2. Install Python packages ────────────────────────────────────────────────
 echo "[2/6] Installing Python dependencies (including gunicorn)..."