diff --git a/haproxy/proxy/listen/oss/mongodb.yml b/haproxy/proxy/listen/oss/mongodb.yml
index d4086cd..d6e5b0a 100644
--- a/haproxy/proxy/listen/oss/mongodb.yml
+++ b/haproxy/proxy/listen/oss/mongodb.yml
@@ -1,7 +1,7 @@
 parameters:
   _param:
     haproxy_mongodb_bind_host: ${_param:haproxy_bind_address}
-    haproxy_mongodb_bind_port: 27017
+    haproxy_mongodb_bind_port: 27018
     haproxy_mongodb_exposed_port: 37017
     haproxy_mongodb_ssl:
       enabled: false