diff --git a/composer.lock b/composer.lock
index ee32f20d..c133f4d9 100644
--- a/composer.lock
+++ b/composer.lock
@@ -1,7 +1,7 @@
 {
     "_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": "353fde15e817eda1cc3b01c1654bdc76",
@@ -187,19 +187,20 @@
         },
         {
             "name": "phpmailer/phpmailer",
-            "version": "v5.2.23",
+            "version": "v5.2.28",
             "source": {
                 "type": "git",
                 "url": "https://github.com/PHPMailer/PHPMailer.git",
-                "reference": "7115df4a6f76281109ebe352900c42403b728bb4"
+                "reference": "acba50393dd03da69a50226c139722af8b153b11"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/PHPMailer/PHPMailer/zipball/7115df4a6f76281109ebe352900c42403b728bb4",
-                "reference": "7115df4a6f76281109ebe352900c42403b728bb4",
+                "url": "https://api.github.com/repos/PHPMailer/PHPMailer/zipball/acba50393dd03da69a50226c139722af8b153b11",
+                "reference": "acba50393dd03da69a50226c139722af8b153b11",
                 "shasum": ""
             },
             "require": {
+                "ext-ctype": "*",
                 "php": ">=5.0.0"
             },
             "require-dev": {
@@ -242,14 +243,14 @@
                 "LGPL-2.1"
             ],
             "authors": [
-                {
-                    "name": "Jim Jagielski",
-                    "email": "jimjag@gmail.com"
-                },
                 {
                     "name": "Marcus Bointon",
                     "email": "phpmailer@synchromedia.co.uk"
                 },
+                {
+                    "name": "Jim Jagielski",
+                    "email": "jimjag@gmail.com"
+                },
                 {
                     "name": "Andy Prevost",
                     "email": "codeworxtech@users.sourceforge.net"
@@ -259,7 +260,25 @@
                 }
             ],
             "description": "PHPMailer is a full-featured email creation and transfer class for PHP",
-            "time": "2017-03-15T19:32:56+00:00"
+            "support": {
+                "issues": "https://github.com/PHPMailer/PHPMailer/issues",
+                "source": "https://github.com/PHPMailer/PHPMailer/tree/v5.2.28"
+            },
+            "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": "2020-03-19T14:29:37+00:00"
         },
         {
             "name": "ramsey/array_column",
@@ -2339,5 +2358,6 @@
     "platform-dev": [],
     "platform-overrides": {
         "php": "5.4.0"
-    }
+    },
+    "plugin-api-version": "2.0.0"
 }