diff --git a/.env-example b/.env-example
index aafcb23..3910b7f 100644
--- a/.env-example
+++ b/.env-example
@@ -1,2 +1,9 @@
 DEBUG=True
 SECRET_KEY='your-secure-key'
+
+DATABASE_NAME=postgres_dev
+DATABASE_USERNAME=postgres
+DATABASE_PASSWORD=testpassword
+DATABASE_HOST=postgres
+DATABASE_PORT=5432
+
diff --git a/CHANGELOG.org b/CHANGELOG.org
index d96049d..69c1db0 100644
--- a/CHANGELOG.org
+++ b/CHANGELOG.org
@@ -30,4 +30,6 @@
    Add the tests for circular next methods.
 ** 0.3.7 <2023-07-23 Sun>
    Add the action to set the circular next status for Task items.
+** 0.3.8 <2023-07-24 Mon>
+   Update the database to use Postgres.
 
diff --git a/requirements.txt b/requirements.txt
index 599dd36..46ecd5d 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,8 +1,12 @@
 asgiref==3.7.2
 crispy-tailwind==0.5.0
 Django==4.2.3
+django-browser-reload==1.11.0
 django-crispy-forms==2.0
 django-tailwind==3.6.0
+gunicorn==21.2.0
+packaging==23.1
+psycopg2-binary==2.9.6
 python-dotenv==1.0.0
 sqlparse==0.4.4
 typing_extensions==4.7.1
diff --git a/simple_todo_list/settings.py b/simple_todo_list/settings.py
index fb94181..d048731 100644
--- a/simple_todo_list/settings.py
+++ b/simple_todo_list/settings.py
@@ -75,8 +75,12 @@ WSGI_APPLICATION = "simple_todo_list.wsgi.application"
 
 DATABASES = {
     "default": {
-        "ENGINE": "django.db.backends.sqlite3",
-        "NAME": BASE_DIR / "db.sqlite3",
+        "ENGINE": "django.db.backends.postgresql",
+        'NAME': os.environ.get('DATABASE_NAME'),
+        'USER': os.environ.get('DATABASE_USERNAME'),
+        'PASSWORD': os.environ.get('DATABASE_PASSWORD'),
+        'HOST': os.environ.get('DATABASE_HOST'),
+        'PORT': os.environ.get('DATABASE_PORT'),
     }
 }