--- a/Dockerfile	Thu Mar 23 15:30:32 2023 +0000
+++ b/Dockerfile	Thu Mar 23 15:30:57 2023 +0000
@@ -1,4 +1,4 @@
-FROM ubuntu:xenial
+FROM debian:bullseye-slim
 
 MAINTAINER Matthew Wild <mwild1@gmail.com>
 
@@ -10,6 +10,7 @@
 	lua-filesystem \
         lua-sec \
         lua-socket \
+        lua-unbound \
         make \
     && rm -rf /var/lib/apt/lists/*