diff --git a/package-lock.json b/package-lock.json
new file mode 100644
index 0000000..2a5382b
--- /dev/null
+++ b/package-lock.json
@@ -0,0 +1,13 @@
+{
+  "name": "parse-smtp-template",
+  "version": "2.1.2",
+  "lockfileVersion": 1,
+  "requires": true,
+  "dependencies": {
+    "nodemailer": {
+      "version": "6.6.0",
+      "resolved": "https://registry.npmjs.org/nodemailer/-/nodemailer-6.6.0.tgz",
+      "integrity": "sha512-ikSMDU1nZqpo2WUPE0wTTw/NGGImTkwpJKDIFPZT+YvvR9Sj+ze5wzu95JHkBMglQLoG2ITxU21WukCC/XsFkg=="
+    }
+  }
+}
diff --git a/package.json b/package.json
index 644e567..af74054 100644
--- a/package.json
+++ b/package.json
@@ -36,7 +36,7 @@
   },
   "homepage": "https://github.com/macarthuror/parse-smtp-template#readme",
   "dependencies": {
-    "nodemailer": "6.4.8"
+    "nodemailer": "6.6.0"
   },
   "devDependencies": {}
 }