diff --git a/templates/shinyproxy-docker-compose.yml.j2 b/templates/shinyproxy-docker-compose.yml.j2
index 176bee3..42fb67c 100644
--- a/templates/shinyproxy-docker-compose.yml.j2
+++ b/templates/shinyproxy-docker-compose.yml.j2
@@ -19,7 +19,7 @@ services:
     ports:
       - {{ shinyproxy_http_port }}:{{ shinyproxy_http_port }}
 {% if shinyproxy_expose_prometheus and shinyproxy_version is version_compare('2.5.0', '>=') %}
-      - {{ shinyproxy_prometheus_port }}:{{ shinyproxy_prometheus_port }}
+      - {{ shinyproxy_prometheus_port }}:9090
 {% endif %}
 {% else %}
     image: {{ shinyproxy_docker_image }}