diff --git a/.env.example b/.env.example
index 75a62c7..28d690e 100644
--- a/.env.example
+++ b/.env.example
@@ -3,4 +3,5 @@ MYSQL_DATABASE=whaticket
 JWT_SECRET=3123123213123
 JWT_REFRESH_SECRET=75756756756
 FRONTEND_PORT=3000
-TZ=America/Fortaleza
\ No newline at end of file
+TZ=America/Fortaleza
+MAX_CONCURRENT_SESSIONS=1
\ No newline at end of file
diff --git a/docker-compose.yaml b/docker-compose.yaml
index f0d01d8..fdc0032 100644
--- a/docker-compose.yaml
+++ b/docker-compose.yaml
@@ -40,6 +40,8 @@ services:
       - MYSQL_DATABASE=${MYSQL_DATABASE:-whaticket}
       - MYSQL_ROOT_PASSWORD=${MYSQL_ROOT_PASSWORD:-strongpassword}
       - TZ=${TZ:-America/Fortaleza}
+    ports:
+      - 3306:3306
     restart: always
     networks:
       - whaticket
@@ -47,6 +49,6 @@ services:
   chrome:
     image: browserless/chrome:latest
     environment:
-      - MAX_CONCURRENT_SESSIONS=10
+      - MAX_CONCURRENT_SESSIONS=${MAX_CONCURRENT_SESSIONS:-1}
     networks:
       - whaticket
\ No newline at end of file