diff --git a/composer.lock b/composer.lock
index f812872..276ba76 100644
--- a/composer.lock
+++ b/composer.lock
@@ -1,23 +1,23 @@
 {
     "_readme": [
         "This file locks the dependencies of your project to a known state",
-        "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#composer-lock-the-lock-file",
+        "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#installing-dependencies",
         "This file is @generated automatically"
     ],
     "content-hash": "85e07ea1e3620c3da1942492052d7d21",
     "packages": [
         {
             "name": "phpmailer/phpmailer",
-            "version": "v6.1.2",
+            "version": "v6.1.6",
             "source": {
                 "type": "git",
                 "url": "https://github.com/PHPMailer/PHPMailer.git",
-                "reference": "0ae8505d26fa7fa15d3d2d5ec1e695e854bb1538"
+                "reference": "c2796cb1cb99d7717290b48c4e6f32cb6c60b7b3"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/PHPMailer/PHPMailer/zipball/0ae8505d26fa7fa15d3d2d5ec1e695e854bb1538",
-                "reference": "0ae8505d26fa7fa15d3d2d5ec1e695e854bb1538",
+                "url": "https://api.github.com/repos/PHPMailer/PHPMailer/zipball/c2796cb1cb99d7717290b48c4e6f32cb6c60b7b3",
+                "reference": "c2796cb1cb99d7717290b48c4e6f32cb6c60b7b3",
                 "shasum": ""
             },
             "require": {
@@ -26,13 +26,9 @@
                 "php": ">=5.5.0"
             },
             "require-dev": {
-                "doctrine/annotations": "1.2.*",
+                "doctrine/annotations": "^1.2",
                 "friendsofphp/php-cs-fixer": "^2.2",
-                "phpdocumentor/phpdocumentor": "2.*",
-                "phpunit/phpunit": "^4.8 || ^5.7",
-                "zendframework/zend-eventmanager": "3.0.*",
-                "zendframework/zend-i18n": "2.7.3",
-                "zendframework/zend-serializer": "2.7.*"
+                "phpunit/phpunit": "^4.8 || ^5.7"
             },
             "suggest": {
                 "ext-mbstring": "Needed to send email in multibyte encoding charset",
@@ -70,7 +66,7 @@
                 }
             ],
             "description": "PHPMailer is a full-featured email creation and transfer class for PHP",
-            "time": "2019-11-13T20:09:28+00:00"
+            "time": "2020-05-27T12:24:03+00:00"
         }
     ],
     "packages-dev": [],