diff --git a/expressApp/package-lock.json b/expressApp/package-lock.json
index e768ffd..3dac58d 100644
--- a/expressApp/package-lock.json
+++ b/expressApp/package-lock.json
@@ -267,9 +267,9 @@
       "integrity": "sha1-KzJxhOiZIQEXeyhWP7XnECrNDKk="
     },
     "nodemailer": {
-      "version": "6.1.1",
-      "resolved": "https://registry.npmjs.org/nodemailer/-/nodemailer-6.1.1.tgz",
-      "integrity": "sha512-/x5MRIh56VyuuhLfcz+DL2SlBARpZpgQIf2A4Ao4hMb69MHSgDIMPwYmFwesGT1lkRDZ0eBSoym5+JoIZ3N+cQ=="
+      "version": "6.4.16",
+      "resolved": "https://registry.npmjs.org/nodemailer/-/nodemailer-6.4.16.tgz",
+      "integrity": "sha512-68K0LgZ6hmZ7PVmwL78gzNdjpj5viqBdFqKrTtr9bZbJYj6BRj5W6WGkxXrEnUl3Co3CBXi3CZBUlpV/foGnOQ=="
     },
     "object-assign": {
       "version": "4.1.1",
diff --git a/expressApp/package.json b/expressApp/package.json
index 69f7b51..3652f19 100644
--- a/expressApp/package.json
+++ b/expressApp/package.json
@@ -20,6 +20,6 @@
     "cors": "^2.8.5",
     "express": "^4.16.4",
     "mysql": "^2.16.0",
-    "nodemailer": "^6.1.1"
+    "nodemailer": "^6.4.16"
   }
 }