diff --git a/infra/crontab b/infra/crontab
index 8a0490a..5925f7d 100644
--- a/infra/crontab
+++ b/infra/crontab
@@ -3,4 +3,5 @@
 # Fuso horário: UTC (ajustar se necessário)
 
 # A cada 5 minutos: executa o ETL
-*/5 * * * * PYTHONPATH=/app /usr/local/bin/python -m app.main >> /var/log/wifi-etl.log 2>&1
+# WiFi ETL Pipeline — Cron Jobs
+*/5 * * * * cd /app && /usr/local/bin/python -m app.main >> /var/log/wifi-etl.log 2>&1
\ No newline at end of file
diff --git a/infra/entrypoint.sh b/infra/entrypoint.sh
index b62a39d..37ed3cc 100644
--- a/infra/entrypoint.sh
+++ b/infra/entrypoint.sh
@@ -1,7 +1,17 @@
-#!/bin/sh
-
+#!/bin/bash
 echo "=== WiFi ETL Container Starting ==="
+
+# Exporta variáveis do .env para o ambiente do cron
+if [ -f /app/.env ]; then
+    set -a
+    source /app/.env
+    set +a
+    # Persiste no ambiente do cron
+    printenv | grep -v "^_=" >> /etc/environment
+fi
+
 echo "Executando primeira corrida ETL..."
-python -m app.main || echo "ETL inicial falhou (ver logs). O cron continuará rodando."
+cd /app && python -m app.main || echo "ETL inicial falhou (ver logs). O cron continuará rodando."
+
 echo "Iniciando cron..."
-exec cron -f
+exec "$@"
\ No newline at end of file