diff --git a/composer.lock b/composer.lock
index 196ff36dd057..44a375650f6a 100644
--- a/composer.lock
+++ b/composer.lock
@@ -2491,16 +2491,16 @@
         },
         {
             "name": "phpmailer/phpmailer",
-            "version": "v6.6.0",
+            "version": "v6.6.4",
             "source": {
                 "type": "git",
                 "url": "https://github.com/PHPMailer/PHPMailer.git",
-                "reference": "e43bac82edc26ca04b36143a48bde1c051cfd5b1"
+                "reference": "a94fdebaea6bd17f51be0c2373ab80d3d681269b"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/PHPMailer/PHPMailer/zipball/e43bac82edc26ca04b36143a48bde1c051cfd5b1",
-                "reference": "e43bac82edc26ca04b36143a48bde1c051cfd5b1",
+                "url": "https://api.github.com/repos/PHPMailer/PHPMailer/zipball/a94fdebaea6bd17f51be0c2373ab80d3d681269b",
+                "reference": "a94fdebaea6bd17f51be0c2373ab80d3d681269b",
                 "shasum": ""
             },
             "require": {
@@ -2512,8 +2512,8 @@
             "require-dev": {
                 "dealerdirect/phpcodesniffer-composer-installer": "^0.7.0",
                 "doctrine/annotations": "^1.2",
-                "php-parallel-lint/php-console-highlighter": "^0.5.0",
-                "php-parallel-lint/php-parallel-lint": "^1.3.1",
+                "php-parallel-lint/php-console-highlighter": "^1.0.0",
+                "php-parallel-lint/php-parallel-lint": "^1.3.2",
                 "phpcompatibility/php-compatibility": "^9.3.5",
                 "roave/security-advisories": "dev-latest",
                 "squizlabs/php_codesniffer": "^3.6.2",
@@ -2557,7 +2557,7 @@
             "description": "PHPMailer is a full-featured email creation and transfer class for PHP",
             "support": {
                 "issues": "https://github.com/PHPMailer/PHPMailer/issues",
-                "source": "https://github.com/PHPMailer/PHPMailer/tree/v6.6.0"
+                "source": "https://github.com/PHPMailer/PHPMailer/tree/v6.6.4"
             },
             "funding": [
                 {
@@ -2565,7 +2565,7 @@
                     "type": "github"
                 }
             ],
-            "time": "2022-02-28T15:31:21+00:00"
+            "time": "2022-08-22T09:22:00+00:00"
         },
         {
             "name": "phpoffice/phpspreadsheet",