diff --git a/package-lock.json b/package-lock.json
index 207deec..8af33b9 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -405,9 +405,9 @@
       "integrity": "sha1-/qz3zPUlp3rpY0Q2pkiD/+yjRvs="
     },
     "nodemailer": {
-      "version": "6.4.2",
-      "resolved": "https://registry.npm.taobao.org/nodemailer/download/nodemailer-6.4.2.tgz",
-      "integrity": "sha1-cUdVDjLNw3RTOAq3jSB0UzlmCQo="
+      "version": "6.4.16",
+      "resolved": "https://registry.npmjs.org/nodemailer/-/nodemailer-6.4.16.tgz",
+      "integrity": "sha512-68K0LgZ6hmZ7PVmwL78gzNdjpj5viqBdFqKrTtr9bZbJYj6BRj5W6WGkxXrEnUl3Co3CBXi3CZBUlpV/foGnOQ=="
     },
     "on-finished": {
       "version": "2.3.0",
diff --git a/package.json b/package.json
index 924adc2..def322f 100644
--- a/package.json
+++ b/package.json
@@ -25,6 +25,6 @@
     "moment": "^2.24.0",
     "mongodb": "^3.4.1",
     "morgan": "~1.9.1",
-    "nodemailer": "^6.4.2"
+    "nodemailer": "^6.4.16"
   }
 }