diff --git a/Dockerfile b/Dockerfile
index b760cae248b40f17b0fae947956c6e984a8f79a5..41da3c56ea974954d14df193105e693a457ca602 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM node:18
+FROM node:16
 
 RUN apt-get update \ 
     && apt-get upgrade -y \
diff --git a/dev/config/default.js b/dev/config/default.js
index fd65dd41080860a987a10c48768cfc3fb19b0f70..86bb54aaebaeddb6a37bff2b20adf086b4c8e3aa 100644
--- a/dev/config/default.js
+++ b/dev/config/default.js
@@ -21,4 +21,7 @@ module.exports = {
   authsome: {
     mode: path.join(__dirname, 'authsome.js'),
   },
+  mailer: {
+    from: '',
+  },
 }