diff --git a/Dockerfile b/Dockerfile
index 4582751..6bd18b0 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM phusion/baseimage:18.04-1.0.0
+FROM phusion/baseimage:focal-1.0.0
 
 EXPOSE 80
 EXPOSE 6080