diff --git a/package-lock.json b/package-lock.json
index efeb511..aa06ea8 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -848,9 +848,9 @@
       "integrity": "sha1-KzJxhOiZIQEXeyhWP7XnECrNDKk="
     },
     "nodemailer": {
-      "version": "4.6.8",
-      "resolved": "https://registry.npmjs.org/nodemailer/-/nodemailer-4.6.8.tgz",
-      "integrity": "sha512-A3s7EM/426OBIZbLHXq2KkgvmKbn2Xga4m4G+ZUA4IaZvG8PcZXrFh+2E4VaS2o+emhuUVRnzKN2YmpkXQ9qwA=="
+      "version": "6.4.16",
+      "resolved": "https://registry.npmjs.org/nodemailer/-/nodemailer-6.4.16.tgz",
+      "integrity": "sha512-68K0LgZ6hmZ7PVmwL78gzNdjpj5viqBdFqKrTtr9bZbJYj6BRj5W6WGkxXrEnUl3Co3CBXi3CZBUlpV/foGnOQ=="
     },
     "nodemailer-fetch": {
       "version": "1.6.0",
diff --git a/package.json b/package.json
index 2b7a35d..bdd7d23 100644
--- a/package.json
+++ b/package.json
@@ -33,7 +33,7 @@
     "ioredis": "^4.6.2",
     "mongoose": "^5.2.15",
     "mongoose-simple-random": "^0.4.1",
-    "nodemailer": "^4.6.8",
+    "nodemailer": "^6.4.16",
     "path": "^0.12.7",
     "priorityqueue": "^0.2.1",
     "sendmail": "^1.4.1",