diff --git a/hack/dockerfiles/ui.Dockerfile b/hack/dockerfiles/ui.Dockerfile
index f4e4a00..be2ba82 100644
--- a/hack/dockerfiles/ui.Dockerfile
+++ b/hack/dockerfiles/ui.Dockerfile
@@ -22,5 +22,5 @@ FROM base AS output
 
 COPY --from=builder /src .
 
-EXPOSE 3000
+ENV PORT=6601
 CMD yarn ui:prod
diff --git a/package.json b/package.json
index e410781..39b3b9f 100644
--- a/package.json
+++ b/package.json
@@ -26,7 +26,7 @@
         "test": "jest",
         "ui": "next dev -p 6601",
         "ui:build": "next build",
-        "ui:prod": "next start"
+        "ui:prod": "cross-env next start -p ${PORT:-3000}"
     },
     "dependencies": {
         "chroma-js": "^2.1.0",