diff --git a/packages/cli/package.json b/packages/cli/package.json
index ceca666eb8a47..288176017e414 100644
--- a/packages/cli/package.json
+++ b/packages/cli/package.json
@@ -146,7 +146,7 @@
     "n8n-nodes-base": "workspace:*",
     "n8n-workflow": "workspace:*",
     "nanoid": "3.3.6",
-    "nodemailer": "6.8.0",
+    "nodemailer": "6.9.9",
     "oauth-1.0a": "2.2.6",
     "open": "7.4.2",
     "openapi-types": "10.0.0",
diff --git a/packages/nodes-base/package.json b/packages/nodes-base/package.json
index 7a3d6dd48eff8..4ec4f5e9615db 100644
--- a/packages/nodes-base/package.json
+++ b/packages/nodes-base/package.json
@@ -815,7 +815,7 @@
     "@types/mime-types": "^2.1.0",
     "@types/mssql": "^6.0.2",
     "@types/node-ssh": "^7.0.1",
-    "@types/nodemailer": "^6.4.0",
+    "@types/nodemailer": "^6.4.14",
     "@types/promise-ftp": "^1.3.4",
     "@types/request-promise-native": "~1.0.15",
     "@types/rfc2047": "^2.0.1",
@@ -869,7 +869,7 @@
     "nanoid": "3.3.6",
     "node-html-markdown": "1.2.0",
     "node-ssh": "12.0.5",
-    "nodemailer": "6.8.0",
+    "nodemailer": "6.9.9",
     "otpauth": "9.1.1",
     "pdfjs-dist": "2.16.105",
     "pg": "8.8.0",
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index 4c6c75e4cdd20..633fdbe495871 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -522,8 +522,8 @@ importers:
         specifier: 3.3.6
         version: 3.3.6
       nodemailer:
-        specifier: 6.8.0
-        version: 6.8.0
+        specifier: 6.9.9
+        version: 6.9.9
       oauth-1.0a:
         specifier: 2.2.6
         version: 2.2.6
@@ -1328,8 +1328,8 @@ importers:
         specifier: 12.0.5
         version: 12.0.5
       nodemailer:
-        specifier: 6.8.0
-        version: 6.8.0
+        specifier: 6.9.9
+        version: 6.9.9
       otpauth:
         specifier: 9.1.1
         version: 9.1.1
@@ -1452,8 +1452,8 @@ importers:
         specifier: ^7.0.1
         version: 7.0.1
       '@types/nodemailer':
-        specifier: ^6.4.0
-        version: 6.4.6
+        specifier: ^6.4.14
+        version: 6.4.14
       '@types/promise-ftp':
         specifier: ^1.3.4
         version: 1.3.4
@@ -10345,8 +10345,8 @@ packages:
   /@types/node@18.16.16:
     resolution: {integrity: sha512-NpaM49IGQQAUlBhHMF82QH80J08os4ZmyF9MkpCzWAGuOHqE4gTEbhzd7L3l5LmWuZ6E0OiC1FweQ4tsiW35+g==}
 
-  /@types/nodemailer@6.4.6:
-    resolution: {integrity: sha512-pD6fL5GQtUKvD2WnPmg5bC2e8kWCAPDwMPmHe/ohQbW+Dy0EcHgZ2oCSuPlWNqk74LS5BVMig1SymQbFMPPK3w==}
+  /@types/nodemailer@6.4.14:
+    resolution: {integrity: sha512-fUWthHO9k9DSdPCSPRqcu6TWhYyxTBg382vlNIttSe9M7XfsT06y0f24KHXtbnijPGGRIcVvdKHTNikOI6qiHA==}
     dependencies:
       '@types/node': 18.16.16
     dev: true
@@ -20560,8 +20560,8 @@ packages:
     engines: {node: '>=6.0.0'}
     dev: false
 
-  /nodemailer@6.8.0:
-    resolution: {integrity: sha512-EjYvSmHzekz6VNkNd12aUqAco+bOkRe3Of5jVhltqKhEsjw/y0PYPJfp83+s9Wzh1dspYAkUW/YNQ350NATbSQ==}
+  /nodemailer@6.9.9:
+    resolution: {integrity: sha512-dexTll8zqQoVJEZPwQAKzxxtFn0qTnjdQTchoU6Re9BUUGBJiOy3YMn/0ShTW6J5M0dfQ1NeDeRTTl4oIWgQMA==}
     engines: {node: '>=6.0.0'}
     dev: false