diff --git a/functions/submission-created/package.json b/functions/submission-created/package.json
old mode 100755
new mode 100644
index c744d21..e92546d
--- a/functions/submission-created/package.json
+++ b/functions/submission-created/package.json
@@ -14,6 +14,6 @@
   "author": "Netlify",
   "license": "MIT",
   "dependencies": {
-    "nodemailer": "^6.4.2"
+    "nodemailer": "^6.6.1"
   }
 }
diff --git a/functions/submission-created/yarn.lock b/functions/submission-created/yarn.lock
index a59faea..7615091 100644
--- a/functions/submission-created/yarn.lock
+++ b/functions/submission-created/yarn.lock
@@ -2,7 +2,6 @@
 # yarn lockfile v1
 
 
-"nodemailer@^6.4.2":
-  "integrity" "sha512-g0n4nH1ONGvqYo1v72uSWvF/MRNnnq1LzmSzXb/6EPF3LFb51akOhgG3K2+aETAsJx90/Q5eFNTntu4vBCwyQQ=="
-  "resolved" "https://registry.npmjs.org/nodemailer/-/nodemailer-6.4.2.tgz"
-  "version" "6.4.2"
+nodemailer@^6.6.1:
+  version "6.6.1"
+  resolved "https://registry.yarnpkg.com/nodemailer/-/nodemailer-6.6.1.tgz#2a05fbf205b897d71bf43884167b5d4d3bd01b99"