diff --git a/pica-oh-my-form/Dockerfile b/pica-oh-my-form/Dockerfile
index 458d18381bbd18b6ca954995debc65819874f167..27d71c7674b9cc0b381722fa81bbdedf3374ae61 100644
--- a/pica-oh-my-form/Dockerfile
+++ b/pica-oh-my-form/Dockerfile
@@ -50,5 +50,7 @@ RUN npm install --only=production \
 # Change to non-root privilege
 USER ohmyform
 
+EXPOSE 5000
+
 # Run OhMyForm server
 CMD ["node", "server.js"]