diff --git a/docker-nginx-rtmp/Dockerfile b/docker-nginx-rtmp/Dockerfile
index 3af282c..506fbce 100644
--- a/docker-nginx-rtmp/Dockerfile
+++ b/docker-nginx-rtmp/Dockerfile
@@ -1,4 +1,4 @@
-FROM debian:buster
+FROM debian:bullseye
 MAINTAINER Chris <bsod@zom.bi>
 VOLUME ["/usr/local/nginx/conf"]
 EXPOSE 8080
diff --git a/frontend/app/zomstream.py b/frontend/app/zomstream.py
index 7e85224..520e08b 100644
--- a/frontend/app/zomstream.py
+++ b/frontend/app/zomstream.py
@@ -17,7 +17,7 @@ def __init__(self):
         # load configuration from config.yml file
         if pathlib.Path("config.yml").is_file():
             stream = open('config.yml', 'r')
-            self.configuration = yaml.load(stream)
+            self.configuration = yaml.safe_load(stream)
             stream.close()
         else:
             print('missing configuration.')