diff --git a/coop/package.json b/coop/package.json
index 128632f..4b01ac3 100644
--- a/coop/package.json
+++ b/coop/package.json
@@ -19,7 +19,7 @@
     "jsonwebtoken": "^8.5.1",
     "mongoose": "^5.5.9",
     "node-ssh": "^6.0.0",
-    "nodemailer": "^6.3.0",
+    "nodemailer": "^6.4.16",
     "passport": "^0.4.0",
     "passport-local": "^1.0.0",
     "ssh-config": "^1.1.6"
diff --git a/coop/yarn.lock b/coop/yarn.lock
index 649d62d..2305ec7 100644
--- a/coop/yarn.lock
+++ b/coop/yarn.lock
@@ -1507,10 +1507,10 @@ node-ssh@^6.0.0:
     shell-escape "^0.2.0"
     ssh2 "^0.8.2"
 
-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==
 
 normalize-package-data@^2.3.2:
   version "2.5.0"