diff --git a/dockerfile b/dockerfile
index a1f584c..bb81bbd 100644
--- a/dockerfile
+++ b/dockerfile
@@ -1,4 +1,4 @@
-FROM ubuntu:22.04
+FROM ubuntu:20.04
 VOLUME /usr /lib /etc /var /bin /home
 CMD /bin/bash
 ADD https://git.dfosd.synology.me/docker/ubuntu-base/raw/branch/master/setup_programs.sh /setup_programs.sh