diff --git a/Dockerfile b/Dockerfile
index e39741c..323d8ca 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,6 +1,5 @@
-FROM ruby:3.1.3-slim-bullseye
-
+FROM ruby
 RUN gem install mdl
-COPY --chmod=+x entrypoint.sh /entrypoint.sh
-
+COPY . .
+RUN chmod +x /entrypoint.sh
 ENTRYPOINT ["/entrypoint.sh"]