diff --git a/Dockerfile b/Dockerfile
index f359993..1c72c26 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -17,5 +17,4 @@ RUN bundle install
 EXPOSE 4567
 
 # Send it
-CMD ["bundle", "exec", "rackup", "-o", "0.0.0.0", "-p", "4567", "-E", \
-    "production"]
+CMD ["bundle", "exec", "mywillpower.rb"]