diff --git a/packages/xo-server-transport-email/package.json b/packages/xo-server-transport-email/package.json
index 46457909f..006c6bf09 100644
--- a/packages/xo-server-transport-email/package.json
+++ b/packages/xo-server-transport-email/package.json
@@ -30,7 +30,7 @@
   "dependencies": {
     "nodemailer": "^2.4.2",
     "nodemailer-markdown": "^1.0.0",
-    "promise-toolbox": "^0.4.0"
+    "promise-toolbox": "^0.5.1"
   },
   "devDependencies": {
     "babel-cli": "^6.10.1",
@@ -39,7 +39,7 @@
     "babel-preset-stage-0": "^6.5.0",
     "dependency-check": "^2.5.1",
     "ghooks": "^1.2.4",
-    "standard": "^7.1.2"
+    "standard": "^8.1.0"
   },
   "scripts": {
     "build": "NODE_ENV=production babel --source-maps --out-dir=dist/ src/",
diff --git a/packages/xo-server-transport-email/src/index.js b/packages/xo-server-transport-email/src/index.js
index 94a546cb8..4cd34a6d5 100644
--- a/packages/xo-server-transport-email/src/index.js
+++ b/packages/xo-server-transport-email/src/index.js
@@ -150,7 +150,9 @@ class TransportEmailPlugin {
     // TODO: handle errors
     return this._send({
       from,
-      to, cc, bcc,
+      to,
+      cc,
+      bcc,
       subject,
       markdown
     }).catch(logAndRethrow)