diff --git a/Dockerfile b/Dockerfile
index 1be5332..d686bd2 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -8,4 +8,8 @@ RUN npm install --production
 # Copy source
 COPY . ./
 
+# Ports
+ENV PORT 80
+EXPOSE 80
+
 ENTRYPOINT ["npm", "start"]