diff --git a/package.json b/package.json
index 513f57e..160776a 100644
--- a/package.json
+++ b/package.json
@@ -21,7 +21,7 @@
     "node-readability": "^3.0.0",
     "node-schedule": "^1.3.2",
     "node-summary": "satwa/node-summary#master",
-    "nodemailer": "^4.7.0",
+    "nodemailer": "^6.4.10",
     "passport": "^0.4.0",
     "passport-twitter": "^1.0.0",
     "pg": "^7.11.0",