diff --git a/src/booking.py b/src/booking.py
index f1fe95f..6c07355 100644
--- a/src/booking.py
+++ b/src/booking.py
@@ -7,6 +7,7 @@ import markdown
 
 import requests
 import shortuuid
+from django.conf.global_settings import CSRF_TRUSTED_ORIGINS
 from django.core.validators import URLValidator
 from django.db import models
 from django.shortcuts import render, get_object_or_404
@@ -32,13 +33,15 @@ app = Django(
     SECRET_KEY=DJANGO_SECRET_KEY,
     TIME_ZONE=os.getenv("TIME_ZONE", "Europe/Berlin"),
     ALLOWED_HOSTS=["localhost"] + [host for host in
-                                   os.getenv("ALLOWED_HOSTS", "").split(",")],
+                                   os.getenv("DJANGO_ALLOWED_HOSTS", "").split(",")],
     SQLITE_DATABASE=DATA_DIR / "db.sqlite3",
     DEBUG=DEBUG,
     TEMPLATES_DIR=BASE_DIR / "templates",
     STATICFILES_DIRS=[
         BASE_DIR / "static",
     ],
+    CSRF_TRUSTED_ORIGINS=[host for host in
+                          os.getenv("DJANGO_ALLOWED_HOSTS", "").split(",")]
 )
 
 # Import ninja after nanodjango has been initialised to avoid this error:
diff --git a/version.txt b/version.txt
index e6d5cb8..e4c0d46 100644
--- a/version.txt
+++ b/version.txt
@@ -1 +1 @@
-1.0.2
\ No newline at end of file
+1.0.3
\ No newline at end of file