diff --git a/core/config/jwt.py b/core/config/jwt.py
index 0bbc3c1..719a020 100644
--- a/core/config/jwt.py
+++ b/core/config/jwt.py
@@ -16,8 +16,8 @@
     
 
 SIMPLE_JWT = {
-    "ACCESS_TOKEN_LIFETIME": timedelta(minutes=5),
-    "REFRESH_TOKEN_LIFETIME": timedelta(days=7),
+    "ACCESS_TOKEN_LIFETIME": timedelta(days=7),
+    "REFRESH_TOKEN_LIFETIME": timedelta(days=31),
     "ROTATE_REFRESH_TOKENS": True,
     "BLACKLIST_AFTER_ROTATION": True,
     "UPDATE_LAST_LOGIN": False,
diff --git a/core/settings/development.py b/core/settings/development.py
index b3e5109..4601161 100644
--- a/core/settings/development.py
+++ b/core/settings/development.py
@@ -1,12 +1,10 @@
-import os
-
 from .base import * # noqa
 
 EMAIL_BACKEND = "django.core.mail.backends.console.EmailBackend"
 
 DATABASES = {
     "default": {
-        "ENGINE": f"django.db.backends.{str(os.getenv('DATABASE_ENVIRON'))}",
+        "ENGINE": f"django.db.backends.sqlite3",
         "NAME": BASE_DIR / "db.sqlite3",
     }
 }
\ No newline at end of file
diff --git a/core/settings/production.py b/core/settings/production.py
index b3eb0c8..2b43434 100644
--- a/core/settings/production.py
+++ b/core/settings/production.py
@@ -9,20 +9,30 @@
 EMAIL_HOST_PASSWORD = os.getenv("EMAIL_HOST_PASSWORD")
 EMAIL_USE_TLS = True
 
-DATABASES = {
-    "default": {
-        "ENGINE": f"django.db.backends.{str(os.getenv('DATABASE_ENVIRON'))}",
-        "NAME": str(os.getenv("DATABASE_NAME")),
-        "USER": str(os.getenv("DATABASE_USER")),
-        "PASSWORD": str(os.getenv("DATABASE_PASSWORD")),
-        "HOST": str(os.getenv("DATABASE_HOST")),
-        "PORT": int(os.getenv("DATABASE_PORT"))
-    }
-}
+DATABASES_ENVIRON = os.getenv("DATABASE_ENVIRON")
 
-# CACHES = {
-#     "default": {
-#         "BACKEND": "django.core.cache.backends.redis.RedisCache",
-#         "LOCATION": os.getenv("REDIS_CACHE_URL"),
-#     },
-# }
+if DATABASES_ENVIRON == "postgresql":
+    DATABASES = {
+        "default": {
+            "ENGINE": f"django.db.backends.postgresql",
+            "NAME": str(os.getenv("DATABASE_NAME")),
+            "USER": str(os.getenv("DATABASE_USER")),
+            "PASSWORD": str(os.getenv("DATABASE_PASSWORD")),
+            "HOST": str(os.getenv("DATABASE_HOST")),
+            "PORT": int(os.getenv("DATABASE_PORT"))
+        }
+    }
+elif DATABASES_ENVIRON == 'mysql':
+    DATABASES = {
+        "default": {
+            "ENGINE": f"django.db.backends.mysql",
+            "NAME": str(os.getenv("DATABASE_NAME")),
+            "USER": str(os.getenv("DATABASE_USER")),
+            "PASSWORD": str(os.getenv("DATABASE_PASSWORD")),
+            "HOST": str(os.getenv("DATABASE_HOST")),
+            "PORT": int(os.getenv("DATABASE_PORT")),
+            "OPTIONS": {
+                "sql_mode": "STRICT_TRANS_TABLES",
+            }
+        }
+    }
diff --git a/core/settings_example.py b/core/settings_example.py
deleted file mode 100644
index 6263a85..0000000
--- a/core/settings_example.py
+++ /dev/null
@@ -1,112 +0,0 @@
-import os
-
-from pathlib import Path
-
-from core.config import * # noqa
-
-from dotenv import load_dotenv
-load_dotenv()
-
-BASE_DIR = Path(__file__).resolve().parent.parent
-
-SECRET_KEY = str(os.getenv("SECRET_KEY"))
-
-DEBUG = bool(os.getenv("DEBUG", True))
-
-ALLOWED_HOSTS = str(os.getenv("ALLOWED_HOSTS")).split(",")
-
-
-INSTALLED_APPS = DEFAULT_APPS + PROJECT_APPS + THIRD_PARTY_APPS
-
-
-MIDDLEWARE = [
-    "django.middleware.security.SecurityMiddleware",
-    "django.contrib.sessions.middleware.SessionMiddleware",
-    "django.middleware.common.CommonMiddleware",
-    "django.middleware.csrf.CsrfViewMiddleware",
-    "django.contrib.auth.middleware.AuthenticationMiddleware",
-    "django.contrib.messages.middleware.MessageMiddleware",
-    "django.middleware.clickjacking.XFrameOptionsMiddleware",
-    "apps.users.middleware.JWTAuthMiddleware",
-]
-
-ROOT_URLCONF = "core.urls"
-
-
-TEMPLATES_DIRS = ["templates"]
-
-TEMPLATES = [
-    {
-        "BACKEND": "django.template.backends.django.DjangoTemplates",
-        "DIRS": TEMPLATES_DIRS,
-        "APP_DIRS": True,
-        "OPTIONS": {
-            "context_processors": [
-                "django.template.context_processors.debug",
-                "django.template.context_processors.request",
-                "django.contrib.auth.context_processors.auth",
-                "django.contrib.messages.context_processors.messages",
-            ],
-        },
-    },
-]
-
-
-WSGI_APPLICATION = "core.wsgi.application"
-
-if os.getenv("DATABASE_ENVIRON") == "postgres":
-    DATABASES = {
-        "default": {
-            "ENGINE": "django.db.backends.postgresql",
-            "NAME": str(os.getenv("POSTGRES_NAME")),
-            "USER": str(os.getenv("POSTGRES_USER")),
-            "PASSWORD": str(os.getenv("POSTGRES_PASSWORD")),
-            "HOST": str(os.getenv("POSTGRES_HOST")),
-            "PORT": int(os.getenv("POSTGRES_PORT"))
-        }
-    }
-else:
-    DATABASES = {
-        "default": {
-            "ENGINE": "django.db.backends.sqlite3",
-            "NAME": BASE_DIR / "db.sqlite3",
-        }
-    }
-
-
-AUTH_PASSWORD_VALIDATORS = [
-    {
-        "NAME": "django.contrib.auth.password_validation.UserAttributeSimilarityValidator",
-    },
-    {
-        "NAME": "django.contrib.auth.password_validation.MinimumLengthValidator",
-    },
-    {
-        "NAME": "django.contrib.auth.password_validation.CommonPasswordValidator",
-    },
-    {
-        "NAME": "django.contrib.auth.password_validation.NumericPasswordValidator",
-    },
-]
-
-LANGUAGE_CODE = "en"
-
-TIME_ZONE = "Asia/Tashkent"
-
-USE_I18N = True
-# USE_L10N = True
-
-USE_TZ = True
-
-STATIC_URL = "static/"
-STATIC_ROOT = BASE_DIR / "staticfiles"
-STATICFILES_DIRS = [BASE_DIR / "static"]
-
-MEDIA_URL = "media/"
-MEDIA_ROOT = BASE_DIR / "media/"
-
-DEFAULT_AUTO_FIELD = "django.db.models.BigAutoField"
-
-AUTH_USER_MODEL = "users.User"
-
-SITE_ID = 1
diff --git a/requirements.txt b/requirements.txt
index 73ed40d..cfa8f24 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -8,4 +8,5 @@ gunicorn==23.0.0
 markdown2==2.5.1
 pillow==10.4.0
 psycopg2-binary==2.9.10
+mysqlclient
 python-dotenv==1.0.1