diff --git a/sophon/settings.py b/sophon/settings.py
index 33c4191..41c3167 100644
--- a/sophon/settings.py
+++ b/sophon/settings.py
@@ -11,6 +11,7 @@ https://docs.djangoproject.com/en/3.1/ref/settings/
 """
 
 from pathlib import Path
+import os
 
 # Build paths inside the project like this: BASE_DIR / 'subdir'.
 BASE_DIR = Path(__file__).resolve().parent.parent
@@ -20,10 +21,10 @@ BASE_DIR = Path(__file__).resolve().parent.parent
 # See https://docs.djangoproject.com/en/3.1/howto/deployment/checklist/
 
 # SECURITY WARNING: keep the secret key used in production secret!
-SECRET_KEY = '%oe8eyp^)-t*7p*_o@v09i7san+_en!pa@b_985o+xx)hvs4(%'
+SECRET_KEY = os.environ["DJANGO_SECRET_KEY"]
 
 # SECURITY WARNING: don't run with debug turned on in production!
-DEBUG = True
+DEBUG = bool(os.environ.get("DJANGO_DEBUG"))
 
 ALLOWED_HOSTS = []
 
@@ -103,9 +104,9 @@ AUTH_PASSWORD_VALIDATORS = [
 # Internationalization
 # https://docs.djangoproject.com/en/3.1/topics/i18n/
 
-LANGUAGE_CODE = 'en-us'
+LANGUAGE_CODE = os.environ.get("DJANGO_LANGUAGE_CODE", "en-us")
 
-TIME_ZONE = 'UTC'
+TIME_ZONE = os.environ.get("DJANGO_TIME_ZONE", "UTC")
 
 USE_I18N = True