diff --git a/package-lock.json b/package-lock.json
index 1fa03d2..edbcd7c 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,7 +1,7 @@
 {
   "name": "cd-node-01",
-  "lockfileVersion": 1,
   "requires": true,
+  "lockfileVersion": 1,
   "dependencies": {
     "@babel/code-frame": {
       "version": "7.0.0",
@@ -3446,9 +3446,9 @@
       }
     },
     "nodemailer": {
-      "version": "5.1.1",
-      "resolved": "https://registry.npmjs.org/nodemailer/-/nodemailer-5.1.1.tgz",
-      "integrity": "sha512-hKGCoeNdFL2W7S76J/Oucbw0/qRlfG815tENdhzcqTpSjKgAN91mFOqU2lQUflRRxFM7iZvCyaFcAR9noc/CqQ=="
+      "version": "6.4.16",
+      "resolved": "https://registry.npmjs.org/nodemailer/-/nodemailer-6.4.16.tgz",
+      "integrity": "sha512-68K0LgZ6hmZ7PVmwL78gzNdjpj5viqBdFqKrTtr9bZbJYj6BRj5W6WGkxXrEnUl3Co3CBXi3CZBUlpV/foGnOQ=="
     },
     "nopt": {
       "version": "3.0.6",
@@ -3538,6 +3538,7 @@
           "version": "0.1.4",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "kind-of": "^3.0.2",
             "longest": "^1.0.1",
@@ -3862,7 +3863,8 @@
         "is-buffer": {
           "version": "1.1.6",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "is-builtin-module": {
           "version": "1.0.0",
@@ -3946,6 +3948,7 @@
           "version": "3.2.2",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "is-buffer": "^1.1.5"
           }
@@ -3992,7 +3995,8 @@
         "longest": {
           "version": "1.0.1",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "lru-cache": {
           "version": "4.1.3",
@@ -4258,7 +4262,8 @@
         "repeat-string": {
           "version": "1.6.1",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "require-directory": {
           "version": "2.1.1",
diff --git a/package.json b/package.json
index 2a52cc5..8932a90 100644
--- a/package.json
+++ b/package.json
@@ -47,7 +47,7 @@
     "node-linkedin": "^0.5.6",
     "node-sass": "^4.11.0",
     "node-sass-middleware": "^0.11.0",
-    "nodemailer": "^5.1.1",
+    "nodemailer": "^6.4.16",
     "passport": "^0.4.0",
     "passport-facebook": "^3.0.0",
     "passport-github": "^1.1.0",