diff --git a/backend/package.json b/backend/package.json
index a19cf802..5ff240da 100644
--- a/backend/package.json
+++ b/backend/package.json
@@ -54,7 +54,7 @@
     "morgan": "^1.10.0",
     "node-cron": "^2.0.3",
     "node-fetch": "^2.6.7",
-    "nodemailer": "^6.6.1"
+    "nodemailer": "^6.9.9"
   },
   "directories": {
     "test": "test"
diff --git a/backend/yarn.lock b/backend/yarn.lock
index e1666fa6..be70d261 100644
--- a/backend/yarn.lock
+++ b/backend/yarn.lock
@@ -4963,10 +4963,10 @@ node-releases@^1.1.75:
   resolved "https://registry.yarnpkg.com/node-releases/-/node-releases-1.1.75.tgz#6dd8c876b9897a1b8e5a02de26afa79bb54ebbfe"
   integrity sha512-Qe5OUajvqrqDSy6wrWFmMwfJ0jVgwiw4T3KqmbTcZ62qW0gQkheXYhcFM1+lOVcGUoRxcEcfyvFMAnDgaF1VWw==
 
-nodemailer@^6.6.1:
-  version "6.6.1"
-  resolved "https://registry.yarnpkg.com/nodemailer/-/nodemailer-6.6.1.tgz#2a05fbf205b897d71bf43884167b5d4d3bd01b99"
-  integrity sha512-1xzFN3gqv+/qJ6YRyxBxfTYstLNt0FCtZaFRvf4Sg9wxNGWbwFmGXVpfSi6ThGK6aRxAo+KjHtYSW8NvCsNSAg==
+nodemailer@^6.9.9:
+  version "6.9.9"
+  resolved "https://registry.yarnpkg.com/nodemailer/-/nodemailer-6.9.9.tgz#4549bfbf710cc6addec5064dd0f19874d24248d9"
+  integrity sha512-dexTll8zqQoVJEZPwQAKzxxtFn0qTnjdQTchoU6Re9BUUGBJiOy3YMn/0ShTW6J5M0dfQ1NeDeRTTl4oIWgQMA==
 
 nodemon@^2.0.2:
   version "2.0.4"