diff --git a/deploy/Dockerfile b/deploy/Dockerfile
index 7cf6a173..6f3d17d1 100644
--- a/deploy/Dockerfile
+++ b/deploy/Dockerfile
@@ -1,5 +1,5 @@
-FROM python:2.7
+FROM python:3.5
 ADD requirements.txt /tmp
 RUN pip install -r /tmp/requirements.txt -i https://pypi.tuna.tsinghua.edu.cn/simple
 WORKDIR /app
-CMD python manage.py runserver 0.0.0.0:8085
\ No newline at end of file
+CMD python manage.py runserver 0.0.0.0:8085
diff --git a/oj/local_settings.py b/oj/local_settings.py
index b9ad3b05..276beb2b 100644
--- a/oj/local_settings.py
+++ b/oj/local_settings.py
@@ -29,7 +29,7 @@ REDIS_QUEUE = {
 
 DEBUG = True
 
-ALLOWED_HOSTS = []
+ALLOWED_HOSTS = ["*"]
 
 # 在 debug 关闭的情况下，静态文件不是有 django runserver 来处理的，应该由 nginx 返回
 # 在 debug 开启的情况下，django 会在下面两个文件夹中寻找对应的静态文件。