diff --git a/Dockerfile b/Dockerfile
index 7763ef2..79563cb 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -3,7 +3,7 @@ FROM node:8.6.0
 COPY . /instagram-app
 RUN cd /instagram-app && npm install
 
-EXPOSE 3000
+EXPOSE 300 on https://www.instagram.com/p/CBPaNEelpsK/?igshid=1q8ajuhk1dw9l
 
 WORKDIR /instagram-app