diff --git a/compute-2-mep/mastodon/docker-compose.yaml b/compute-2-mep/mastodon/docker-compose.yaml
index 605b062..90afe79 100644
--- a/compute-2-mep/mastodon/docker-compose.yaml
+++ b/compute-2-mep/mastodon/docker-compose.yaml
@@ -55,7 +55,7 @@ services:
       # prettier-ignore
       test: ['CMD-SHELL', "curl -s --noproxy localhost localhost:4000/api/v1/streaming/health | grep -q 'OK' || exit 1"]
     ports:
-      - "127.0.0.1:4000:4000"
+      - "4000:4000"
     depends_on:
       - redis
     networks: