diff --git a/Dockerfile b/Dockerfile
index 0fe562f..70ac090 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -39,4 +39,4 @@ COPY --from=build --chown=app:app /app /app
 COPY --chown=app:app . .
 
 EXPOSE 4567
-CMD [ "bundle", "exec", "rackup", "--host", "0.0.0.0", "--port", "$PORT" ]
+CMD [ "puma", "--bind", "0.0.0.0", "--port", "$PORT" ]