diff --git a/composer.lock b/composer.lock
index b8275ce..0c2b2a9 100644
--- a/composer.lock
+++ b/composer.lock
@@ -8,30 +8,34 @@
     "packages": [
         {
             "name": "phpmailer/phpmailer",
-            "version": "v6.1.5",
+            "version": "v6.5.0",
             "source": {
                 "type": "git",
                 "url": "https://github.com/PHPMailer/PHPMailer.git",
-                "reference": "a8bf068f64a580302026e484ee29511f661b2ad3"
+                "reference": "a5b5c43e50b7fba655f793ad27303cd74c57363c"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/PHPMailer/PHPMailer/zipball/a8bf068f64a580302026e484ee29511f661b2ad3",
-                "reference": "a8bf068f64a580302026e484ee29511f661b2ad3",
+                "url": "https://api.github.com/repos/PHPMailer/PHPMailer/zipball/a5b5c43e50b7fba655f793ad27303cd74c57363c",
+                "reference": "a5b5c43e50b7fba655f793ad27303cd74c57363c",
                 "shasum": ""
             },
             "require": {
                 "ext-ctype": "*",
                 "ext-filter": "*",
+                "ext-hash": "*",
                 "php": ">=5.5.0"
             },
             "require-dev": {
+                "dealerdirect/phpcodesniffer-composer-installer": "^0.7.0",
                 "doctrine/annotations": "^1.2",
-                "friendsofphp/php-cs-fixer": "^2.2",
-                "phpunit/phpunit": "^4.8 || ^5.7"
+                "phpcompatibility/php-compatibility": "^9.3.5",
+                "roave/security-advisories": "dev-latest",
+                "squizlabs/php_codesniffer": "^3.5.6",
+                "yoast/phpunit-polyfills": "^0.2.0"
             },
             "suggest": {
-                "ext-mbstring": "Needed to send email in multibyte encoding charset",
+                "ext-mbstring": "Needed to send email in multibyte encoding charset or decode encoded addresses",
                 "hayageek/oauth2-yahoo": "Needed for Yahoo XOAUTH2 authentication",
                 "league/oauth2-google": "Needed for Google XOAUTH2 authentication",
                 "psr/log": "For optional PSR-3 debug logging",
@@ -67,20 +71,12 @@
             ],
             "description": "PHPMailer is a full-featured email creation and transfer class for PHP",
             "funding": [
-                {
-                    "url": "https://marcus.bointon.com/donations/",
-                    "type": "custom"
-                },
                 {
                     "url": "https://github.com/Synchro",
                     "type": "github"
-                },
-                {
-                    "url": "https://www.patreon.com/marcusbointon",
-                    "type": "patreon"
                 }
             ],
-            "time": "2020-03-14T14:23:48+00:00"
+            "time": "2021-06-16T14:33:43+00:00"
         }
     ],
     "packages-dev": [],