diff --git a/Dockerfile b/Dockerfile
index c614e99..d05fe29 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -12,5 +12,4 @@ FROM node:alpine
 RUN npm install serve -g --silent
 WORKDIR /app
 COPY --from=builder /app/build .
-EXPOSE 80
-CMD ["serve", "-p", "80", "-s", "."]
\ No newline at end of file
+CMD serve -p ${PORT:-8080} -s .