diff --git a/Dockerfile b/Dockerfile
index ebdeccfd..ebdd69e1 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -20,6 +20,8 @@ ENV TIMEZONE=${timezone:-"Asia/Shanghai"} \
 
 # update
 RUN set -ex \
+    && apk --no-cache add \
+    && apk add php82-pdo_pgsql \
     # show php version and extensions
     && php -v \
     && php -m \
diff --git a/app/Process/AsyncQueueConsumer.php b/app/Process/AsyncQueueConsumer.php
new file mode 100644
index 00000000..af0197ac
--- /dev/null
+++ b/app/Process/AsyncQueueConsumer.php
@@ -0,0 +1,13 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\Process;
+
+use Hyperf\AsyncQueue\Process\ConsumerProcess;
+use Hyperf\Process\Annotation\Process;
+
+#[Process(name: "async-queue")]
+class AsyncQueueConsumer extends ConsumerProcess
+{
+}
\ No newline at end of file
diff --git a/composer.json b/composer.json
index d74cbdaa..13f9f31c 100644
--- a/composer.json
+++ b/composer.json
@@ -18,6 +18,7 @@
         "hyperf/command": "^3.0",
         "hyperf/config": "^3.0",
         "hyperf/database": "^3.0",
+        "hyperf/database-pgsql": "^3.0",
         "hyperf/db-connection": "^3.0",
         "hyperf/framework": "^3.0",
         "hyperf/guzzle": "^3.0",
diff --git a/composer.lock b/composer.lock
index d1cd689b..dfc1abb0 100644
--- a/composer.lock
+++ b/composer.lock
@@ -4,7 +4,7 @@
         "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#installing-dependencies",
         "This file is @generated automatically"
     ],
-    "content-hash": "70395e32b08664a1a7f30bcd30136250",
+    "content-hash": "f9a2c8f2d651158bd4bd9a04970f2a36",
     "packages": [
         {
             "name": "brick/math",
@@ -1571,6 +1571,63 @@
             },
             "time": "2023-07-17T12:16:22+00:00"
         },
+        {
+            "name": "hyperf/database-pgsql",
+            "version": "v3.0.23",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/hyperf/database-pgsql.git",
+                "reference": "d84e4c61c74d767d75138345fdeb52882407e306"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/hyperf/database-pgsql/zipball/d84e4c61c74d767d75138345fdeb52882407e306",
+                "reference": "d84e4c61c74d767d75138345fdeb52882407e306",
+                "shasum": ""
+            },
+            "require": {
+                "ext-swoole": ">=5.0",
+                "hyperf/collection": "~3.0.0",
+                "hyperf/database": "~3.0.0",
+                "hyperf/support": "~3.0.0",
+                "hyperf/tappable": "~3.0.0",
+                "php": ">=8.0"
+            },
+            "type": "library",
+            "extra": {
+                "branch-alias": {
+                    "dev-main": "3.0-dev"
+                },
+                "hyperf": {
+                    "config": "Hyperf\\Database\\PgSQL\\ConfigProvider"
+                }
+            },
+            "autoload": {
+                "psr-4": {
+                    "Hyperf\\Database\\PgSQL\\": "src/"
+                }
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
+            ],
+            "description": "A pgsql handler for hyperf/database.",
+            "homepage": "https://hyperf.io",
+            "keywords": [
+                "database",
+                "hyperf",
+                "pgsql",
+                "php",
+                "swoole"
+            ],
+            "support": {
+                "docs": "https://hyperf.wiki",
+                "issues": "https://github.com/hyperf/hyperf/issues",
+                "pull-request": "https://github.com/hyperf/hyperf/pulls",
+                "source": "https://github.com/hyperf/hyperf"
+            },
+            "time": "2023-05-31T02:10:17+00:00"
+        },
         {
             "name": "hyperf/db-connection",
             "version": "v3.0.24",
@@ -8724,7 +8781,7 @@
     "prefer-stable": true,
     "prefer-lowest": false,
     "platform": {
-        "php": ">=8.0"
+        "php": ">=8.2"
     },
     "platform-dev": [],
     "plugin-api-version": "2.3.0"
diff --git a/config/autoload/async_queue.php b/config/autoload/async_queue.php
index 27a58907..92c7a487 100644
--- a/config/autoload/async_queue.php
+++ b/config/autoload/async_queue.php
@@ -1,10 +1,20 @@
 <?php
 
+use Hyperf\AsyncQueue\Driver\RedisDriver;
+
 return [
     'default' => [
-        'driver' => Hyperf\AsyncQueue\Driver\RedisDriver::class,
-        'channel' => 'queue',
+        'driver' => RedisDriver::class,
+        'redis' => [
+            'pool' => 'default',
+        ],
+        'channel' => '{queue}',
+        'timeout' => 2,
         'retry_seconds' => 5,
-        'processes' => 1,
+        'handle_timeout' => 10,
+        'processes' => 2,
+        'concurrent' => [
+            'limit' => 1,
+        ],
     ],
 ];
\ No newline at end of file
diff --git a/config/autoload/databases.php b/config/autoload/databases.php
index 60531842..046d8477 100644
--- a/config/autoload/databases.php
+++ b/config/autoload/databases.php
@@ -19,14 +19,12 @@
         'port' => env('DB_PORT', 3306),
         'username' => env('DB_USERNAME', 'root'),
         'password' => env('DB_PASSWORD', ''),
-        'charset' => env('DB_CHARSET', 'utf8'),
-        'collation' => env('DB_COLLATION', 'utf8_unicode_ci'),
         'prefix' => env('DB_PREFIX', ''),
         'pool' => [
             'min_connections' => 1,
-            'max_connections' => 1000000,
+            'max_connections' => 1000,
             'connect_timeout' => 10.0,
-            'wait_timeout' => 10.0,
+            'wait_timeout' => 3,
             'heartbeat' => -1,
             'max_idle_time' => (float) env('DB_MAX_IDLE_TIME', 60),
         ],
diff --git a/docker-compose.yml b/docker-compose.yml
index 0742182c..aa7e2628 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -1,4 +1,4 @@
-version: '3.5'
+version: '3.9'
 
 services:
   api1: &api
@@ -8,9 +8,8 @@ services:
       context: .
       args:
         APP_STAGE: dev
-    environment:
-      DB_HOST: db
-      REDIS_HOST: cache
+    env_file:
+      - .env
     volumes:
       - ./:/opt/www
     depends_on:
@@ -43,6 +42,25 @@ services:
           cpus: '0.65'
           memory: '1.0GB'
 
+    # postgres
+  postgres:
+    container_name: rinha-de-backend-postgres
+    image: postgres:latest
+    environment:
+      POSTGRES_DB: ${DB_DATABASE}
+      POSTGRES_PASSWORD: ${DB_PASSWORD}
+      POSTGRES_USER: ${DB_USERNAME}
+      PGDATA: /var/lib/postgresql/data/db-files/
+    volumes:
+      - ./migration-postgres.sql:/docker-entrypoint-initdb.d/ddl.sql
+    ports:
+      - 5432:5432
+    deploy:
+      resources:
+        limits:
+          cpus: '0.35'
+          memory: '0.7GB'
+
   cache:
     container_name: rinha-de-backend-cache
     image: redis:latest
diff --git a/migration-postgres.sql b/migration-postgres.sql
new file mode 100644
index 00000000..e69de29b