diff --git a/apps/npm/docker-compose.json b/apps/npm/docker-compose.json
index fd72962..a5143b7 100644
--- a/apps/npm/docker-compose.json
+++ b/apps/npm/docker-compose.json
@@ -1,10 +1,11 @@
 {
+  "schemaVersion": 2,
   "services": [
     {
       "name": "npm",
       "image": "jc21/nginx-proxy-manager:2.13.5",
       "isMain": true,
-      "internalPort": "${NPM_WEBUI_PORT}",
+      "internalPort": 81,
       "addPorts": [
         {
           "hostPort": "${NPM_HTTP_PORT}",