diff --git a/Dockerfile b/Dockerfile
index 3ac6433..3c9f6af 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -18,4 +18,6 @@ FROM gcr.io/distroless/base-debian10
 COPY --from=gobuild /app/build/s3share /app/s3share
 COPY --from=jsbuild /app/build/public /app/public
 
+EXPOSE 3000
+
 ENTRYPOINT [ "/app/s3share" ]