diff --git a/Dockerfile b/Dockerfile
index f36f10e3..c85714e9 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM ubuntu:18.04 as build
+FROM ubuntu:jammy as build
 
 RUN apt-get update && \
     apt-get install -y \
@@ -13,5 +13,5 @@ RUN mkdir /sm64
 WORKDIR /sm64
 ENV PATH="/sm64/tools:${PATH}"
 
-CMD echo 'usage: docker run --rm --mount type=bind,source="$(pwd)",destination=/sm64 sm64 make VERSION=us -j4\n' \
+CMD echo 'usage: docker run --rm --mount type=bind,source="$(pwd)",destination=/sm64 sm64ex-coop make -j4 HEADLESS=1\n' \
          'see https://github.com/n64decomp/sm64/blob/master/README.md for advanced usage'