diff --git a/package.json b/package.json
index 090c5d3..4157b02 100644
--- a/package.json
+++ b/package.json
@@ -27,7 +27,7 @@
         "jsonwebtoken": "^8.4.0",
         "mongoose": "^5.3.13",
         "mongoose-paginate": "^5.0.3",
-        "nodemailer": "^6.3.0",
+        "nodemailer": "^6.4.16",
         "nodemailer-express-handlebars": "^3.0.0",
         "nodemailer-sendgrid-transport": "^0.2.0",
         "nodemon": "^1.18.10",
diff --git a/yarn.lock b/yarn.lock
index d2b4ee4..2b0ab56 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -962,7 +962,7 @@ array-unique@^0.3.2:
   resolved "https://registry.yarnpkg.com/array-unique/-/array-unique-0.3.2.tgz#a894b75d4bc4f6cd679ef3244a9fd8f46ae2d428"
   integrity sha1-qJS3XUvE9s1nnvMkSp/Y9Gri1Cg=
 
-asap@~2.0.3:
+asap@~2.0.3, asap@~2.0.6:
   version "2.0.6"
   resolved "https://registry.yarnpkg.com/asap/-/asap-2.0.6.tgz#e50347611d7e690943208bbdafebcbc2fb866d46"
   integrity sha1-5QNHYR1+aQlDIIu9r+vLwvuGbUY=
@@ -2719,18 +2719,7 @@ handlebars-helper-repeat@^2.0.0:
   dependencies:
     is-number "^5.0.0"
 
-handlebars@^4.0.5:
-  version "4.1.2"
-  resolved "https://registry.yarnpkg.com/handlebars/-/handlebars-4.1.2.tgz#b6b37c1ced0306b221e094fc7aca3ec23b131b67"
-  integrity sha512-nvfrjqvt9xQ8Z/w0ijewdD/vvWDTOweBUm96NTr66Wfvo1mJenBLwcYmPs3TIBP5ruzYGD7Hx/DaM9RmhroGPw==
-  dependencies:
-    neo-async "^2.6.0"
-    optimist "^0.6.1"
-    source-map "^0.6.1"
-  optionalDependencies:
-    uglify-js "^3.1.4"
-
-handlebars@^4.1.2:
+handlebars@^4.0.5, handlebars@^4.1.2:
   version "4.1.2"
   resolved "https://registry.yarnpkg.com/handlebars/-/handlebars-4.1.2.tgz#b6b37c1ced0306b221e094fc7aca3ec23b131b67"
   integrity sha512-nvfrjqvt9xQ8Z/w0ijewdD/vvWDTOweBUm96NTr66Wfvo1mJenBLwcYmPs3TIBP5ruzYGD7Hx/DaM9RmhroGPw==
@@ -3851,10 +3840,10 @@ nodemailer-sendgrid-transport@^0.2.0:
   dependencies:
     sendgrid "^1.8.0"
 
-nodemailer@^6.3.0:
-  version "6.3.0"
-  resolved "https://registry.yarnpkg.com/nodemailer/-/nodemailer-6.3.0.tgz#a89b0c62d3937bdcdeecbf55687bd7911b627e12"
-  integrity sha512-TEHBNBPHv7Ie/0o3HXnb7xrPSSQmH1dXwQKRaMKDBGt/ZN54lvDVujP6hKkO/vjkIYL9rK8kHSG11+G42Nhxuw==
+nodemailer@^6.4.16:
+  version "6.4.16"
+  resolved "https://registry.yarnpkg.com/nodemailer/-/nodemailer-6.4.16.tgz#5cb6391b1d79ab7eff32d6f9f48366b5a7117293"
+  integrity sha512-68K0LgZ6hmZ7PVmwL78gzNdjpj5viqBdFqKrTtr9bZbJYj6BRj5W6WGkxXrEnUl3Co3CBXi3CZBUlpV/foGnOQ==
 
 nodemon@^1.18.10:
   version "1.18.10"